Field Notes · As of Q2 2026

The B2B Software Mistakes List.

161 mistakes we've watched B2B software founders make — across sales, pricing, hiring, product, engineering, contracts, fundraising, and operations. Compiled from 400+ companies, updated from time to time, and paired with the Vertical SaaS Playbook that prevents each one.

161 mistakes
1

Hiring without background checks

Operations

Trust but verify… especially when equity is involved.

Run the play:Employee Agreement
2

Letting logic get into the database

Development

Never let tech put logic in the database.

Run the play:Database Selection
3

Hiring on the cheap and expecting expertise

Operations

There are no ‘deals’ where people are concerned. Don’t hire cheap and expect expertise.

4

Letting customers dictate the terms

Sales & Marketing

Customers pay for value. Don’t let them bully you on terms.

5

Delivering pricing before value

Sales & Marketing

Hearing price before value means selling a commodity.

6

Demoing early in the sales process

Sales & Marketing

Customers stay in the sales process for the demo… wait

7

Not qualifying sales opportunities

Sales & Marketing

Blowing valuable time on bad deals wastes money.

8

No meeting cadence with sales

Sales & Marketing

No accountability in sales means no sales.

9

Building for single tenancy

Development

Don't make the mistake of separate databases for separate clients.

10

Selling phantom product

Sales & Marketing

Only sell what you have, stay away from betting on the future.

11

Building without customer knowledge

Customers

You better know the problem well to succeed. Better yet, live the problem first.

12

Wrong programing language

Development

Java doesn't go with MS SQL... make sure your stack makes sense.

13

Hiring sales for rolodex

Sales & Marketing

Rolodex sales people never deliver. Don’t do it.

14

Hiring cheap and betting on training

Operations

You need experience in building a company. Training is a luxury of big firms. Not small ones.

Run the play:Training Process
15

Focusing on input cost rather than output cost

OperationsDevelopmentSales & Marketing

You pay for output. Don’t measure what’s easy; evaluate what is important.

16

Running out of cash

Executive

Self-explanatory... don’t do it.

17

Giving away equity without vesting

Executive

Nothing works out the way you think it will. Protect your future self.

Run the play:Employee Agreement
18

Messing up your cap table

Executive

Keep it simple silly...

19

Not communicating with investors

Executive

If you don't, then you might as well shut down... keep investors well informed and not only positive stuff.

20

Hip-shot product pricing

Sales & MarketingExecutive

Pricing should ALWAYS be informed by customer value. Pricing in a vacuum is either too much or too little or too confusing...

21

Founder playing ‘lawyer’ on contracts

Executive

Don’t play lawyer. Get a good one, keep them focused and make sure your contracts are well designed for their purpose.

Run the play:Contract Playbook
22

No IP protection with employees or contractors

Executive

Yikes... not good. Get a lawyer, get that fixed asap. If you need to pay someone to get it signed, then do it.

23

Not paying taxes

Executive

Uncle Sam is always going to get his...

Run the play:Audited Financials
24

No documentation in code

Development

Bad tech process and poor documentation means no scaling potential. You don't want this to hold you back.

25

Breaking tech sprints

Development

It is tempting to break a sprint and fit one more thing in... it kills your process. Never do it. Not for the biggest customer or the biggest problem.

26

All in-house tech team

Development

In-house is functionally not possible (or not reasonable) at the early stage. Get a good partner and develop a relationship, even if only for backstop on turnover.

27

Overpaying for tech resources

Executive

Focus on the cost and quality of the output... its harder to measure but ultimately the right thing to measure.

Run the play:Dev Org Chart
28

Non-technical people hiring technical people

Executive

Vetting technical talent is important and nearly impossible without technical know-how.

Run the play:Dev Org Chart
29

Obsession with full-stack engineers

ExecutiveDevelopment

Often this is because the team doesn't like the rigor of proper process and wants to move ‘faster.’ This doesn't scale.

30

Outsourcing core product with off the shelf

ExecutiveDevelopment

Don't outsource core functions. If you productize an off the shelf product, you aren't a software company, you are a reseller.

31

Not engineering for scale

Development

Scale requires second and third order thinking. Don't be myopic. Think about the future.

32

Hiring friends or family

Executive

Be careful here. You company needs different skills as it scales. If you can't fire someone who isn't a fit anymore then you have a liability that will never go away.

Run the play:Employee Agreement
33

Overpaying for talent... underpaying for talent

Executive

Talent is worth what it is worth. If you need a heavy hitter, then you need to be prepared to pay for it. There are no ‘deals’ in this space. Be careful about paying more than market but be fearful about paying under it.

Run the play:Employee Agreement
34

Not aligning interests

Executive

People are self-interested. Never forget that.

35

Hasty commission structure

ExecutiveSales & Marketing

Commission structures are semi-permanent in nature. It is hard to walk one back. Think through self-interest and through your scaling strategy.

36

No clear roles or accountability

Executive

Something goes wrong, someone needs to account for it. Don't tolerate ambiguity here.

37

No meetings... no minutes

Executive

Minutes prove meetings and give accountability for the white space on an org chart. Don't skip them.

38

No agendas for meetings

Executive

Meetings without an agenda might as well be a brunch. Nothing will get done.

39

No employee onboarding

Executive

Employees are a huge cost center. In the early days, each one could represent 10-20% cost increase to the firm. You need productivity, and you only get it with intense onboarding.

Run the play:Training Process
40

Not vetting investors

Executive

One bad tiny investor can tank a business. Good investors want to be vetted, bad ones don't. Do your diligence.

41

No legal review on investor docs

Executive

Hasty investor legal docs are a time bomb. Don't tolerate special deals or last-minute edits. Keep legal engaged.

42

Not managing investor expectations

Executive

Bad expectations can box you into a set of bad choices. Keep investors in the loop but be careful about future expectations.

Run the play:Board of Directors
43

Horizontally scaling

Executive

Adjacent markets are equivalent to a new startup. Keep building the one you’ve already got.

44

Buying a trade show booth... most times

Sales & Marketing

Trade shows can be valuable. Start small though. Be careful about expecting it to be a one-trick pony that will carry your process.

45

Scaling hiring without management

Sales & Marketing

Inexperienced hires need management. The less experience, the more management is needed. Make sure your org chart has good management in place before hiring.

46

Letting sales run product

Executive

Sales is an input to product management not the controller of it.

47

Letting dev run product

Executive

Dev executes the product vision, it is not the controller of it.

48

Making the product roadmap a trivial doc

Executive

The roadmap is the canvas that all constituents in the company fight over to get their vision fulfilled. This is vital to building the right thing.

49

Promising delivery dates to customers

Sales & MarketingOperations

The roadmap is not a customer facing document. It is subject to change and negotiation. Don't box in your team by making one version fixed.

50

Unstructured implementations

Operations

Implementations are vital to customers experiencing the promised value. They need to be meticulously architected.

51

Hourly not to exceed $x contracts

Executive

Never agree to an hourly-not-to-exceed contract. It's a losing outcome regardless.

Run the play:Contract Playbook
52

Fuzzy requirements

Sales & MarketingOperations

It is easy to get exhausted in the sales or account management process and accept bad requirements. Never close the door on discovery until Dev is satisfied. It will always result in a bad experience.

53

Bad scoping

Sales & MarketingOperations

Similar to fuzzy requirements; make sure your scope is deliverable, demonstrable, and approved by the decision-maker.

54

Not vetting strategic decisions with knowledgeable counsel

Executive

Somethings can be decided quickly, some not. Make sure to identify strategic decisions from tactical and spend time with wise counsel.

Run the play:Board of Directors
55

Betting a channel partner will sell for you

ExecutiveSales & Marketing

Channel partners are enticing. But selling your product is your responsibility. Channels are distribution mechanisms they aren't distribution itself.

56

Betting customers will come if you build it

Executive

Start with value. A product without value isn't anything. And value without distribution isn't known. You need both.

57

Not benchmarking results

Executive

How do you know where you are if you don't have a map? Benchmark your company and keep track. The harder to measure, the more valuable the practice.

58

Not doing research on a customer before meeting

Sales & Marketing

Never ‘learn’ something from a question that could have been answered through research. This shows ignorance.

59

No customer support

Operations

Obvious... but it happens a lot.

60

Not using a support ticket system

Operations

Support ticket systems are mandatory.

61

Not having a knowledge base for customer issues

Operations

Don't keep relearning the same issue or reteaching the same solution.

62

Not doing research on an investor before meeting

Executive

Show respect by going into a meeting as prepared as possible.

63

Building your own support tools

Development

Sure, build some support tools, but leverage what you can; especially for support ticket or dev ops.

64

Customer favorable SLA when not an absolute requirement

Sales & Marketing

Lead with value; SLAs aren't value. Don't bring it up unless necessary. Have a ‘standard’ when asked.

65

Stingy on equity

Executive

Equity is how you get good talent for less cash. Don't be stingy. Be smart and put proper vesting in place.

Run the play:Employee Agreement
66

Underfunding product

Executive

Your product needs capital. Don't underestimate the cost to build a revenue-commanding product.

67

Assuming the tech will speak for itself

Sales & Marketing

Value sells not tech. You need to sell the value.

68

Not accounting for the pain of change in customer behavior

Sales & Marketing

Changing is painful, it's a cost beyond the price of your product. The value you provide needs to overcome switching costs as well as your price point.

69

Underestimating the effort of fundraising

Executive

Fundraising is hard... selling to customers is easier. Raise money from customers first. Double your timeline for raising from investors.

Run the play:Cash Flow Forecast
70

Mistaking communication brevity for clarity

Executive

High stakes tasks need clear communication and clear communication takes time. Get it right.

71

No active data room

Executive

A lack of an organized data room results in months long delays for new funding. Keep your systems organized, your deck fresh, and your cash flow managed.

72

Leaving finances to the numbers people

Executive

Founders, you are responsible for your cash needs and spends. You can outsource the tactics, but don't outsource the responsibility.

73

Thinking linearly when experiencing exponential forces

Executive

Exponential growth consumes resources exponentially. We often think linearly. This can be a problem. If you are wrong twice the same direction, assess the dynamic for exponential factors.

74

Banking on exponential forces

Executive

Exponential growth is hard. Don't bank on it.

75

Counting deals as won before docs are signed

Sales & Marketing

It's not done until it's done. Don't let your team socialize unsigned deals as done. At best it’s silly, at worst it hides the true state of the company and can result in devastation when funds run out.

76

Letting customers drop CYA comments in meetings

Sales & MarketingExecutive

CYA comments (those that are designed to be referenced back to in a later date) are terrible. Create an environment of written specifications and changes only. Be clear on this.

77

Ignoring performance reviews

Executive

Performance reviews are mandatory. They feel weird early on when everyone knows everyone, but get in the habit of doing this and it keeps accounts short and develops a high-performance culture.

78

Ending up in win/lose ever

ExecutiveSales & MarketingVendors

Look for win-win. If you are being forced to do lose/win, walk away, it's not worth it. Alternatively if you see your team pushing for win/lose address that immediately.

Run the play:Sales Philosophy
79

Giving extra-contractual concessions

ExecutiveSales & Marketing

Sometimes it pays to be nice and give a concession. Be careful though to document it and ask for something in return. All concessions should be win-win.

80

Editing the MSA for a customer

ExecutiveSales & Marketing

Be careful, and wary, of edits to the MSA. You need to keep your contracts clean. A bunch of one-offs (unless you are $500K+ per customer) will bite you in the end.

Run the play:Contract Playbook
81

Too much reliance on outsourcing

ExecutiveOperationsSales & Marketing

There are great reasons to outsource like fractional expertise and scaling up tactical execution. Strategic oversight should never be outsourced. As you grow, you need more oversight.

82

Don't let small investors overwhelm you or your team

Executive

Be good to your investors, but be careful to set boundaries. If things get contentious, focus on your large investors and, if necessary, ignore the angry small ones (the angry ones are always small)

83

Don't let customers overwhelm you or your team

ExecutiveSales & MarketingOperations

Vocal customers can be a good thing. But when the relationship gets strained, focus on large customers and, if necessary, fire ones that aren't operating as partners.

84

Apologize for poor performance, but don't own what you don't own

ExecutiveCustomers

Own what you can, but put boundaries on frustrated customers and don't own what you aren't responsible for.

85

Ignoring rev-rec

Executive

Get a rev rec policy and make sure it is GAAP. Keep good records.

86

Not hard-closing financial statements

Executive

Hard-close financial statements and don't reopen for edits. Changing historical financials is a sure-fire way to destroy trust with investors.

87

Bluffing

ExecutiveSales & MarketingVendorsOperations

Don't bluff... ever. It never works.

Run the play:Sales Philosophy
88

No customer contract register

Executive

Keep all customer contracts in a register with all relevant information.

Run the play:Contract Register
89

Poor customer contract management

ExecutiveSales & MarketingCustomers

Keep all customer contracts organized and versioned in the final executed form.

90

No contractual teeth

Executive

Your contracts should be worth defending. Poor remedies in the contract results in a lack of adherence to the contract by counterparties. If a counterparty fails to conform, you need a monetary reason to pursue it.

Run the play:Contract Playbook
91

Engaging in brinkmanship

ExecutiveCustomers

Don't engage in brinkmanship. Look for win-win. It never wins to plan to loose.

92

Lack of vendor contract control

ExecutiveOperationsVendors

Failure to control vendor contracts means auto-renewals, escalations etc. that you don't want.

93

Ignoring a problem

Executive

Ignoring a problem results in the problem growing. Don't ignore it. Set time and knock it out.

94

Tolerating brinkmanship

ExecutiveCustomers

When faced with brinkmanship, if it is possible to lose, you did something wrong already. Never back down. And don't bluff.

95

Tolerating misunderstanding from customers

Customers

Don't let your customers misunderstand your offer, intention, or value. Address it every time and address it directly.

96

Not using a CRM

Sales & Marketing

Always use a CRM and adopt a commission policy that forces compliance.

97

Switching CRMs

Sales & Marketing

Switching CRMs can be the right move; most time it is not. Sales teams complaining about CRM is the norm. Don't let them blame poor performance on CRM.

98

Tolerating dishonesty

Executive

Don't tolerate dishonesty. Address it directly with team members, investors, customers, and vendors. Adopt a zero tolerance immediate consequence policy.

99

Paying for ‘money finders’

Executive

There are a ton of people who will charge you to ‘find money’, don't do it. NOTE: this is different than banking your company for sale or finding a financial partner.

100

Lack of documented operating processes

Operations

Document your key processes.

101

Lack of process ownership

Operations

Every process needs an owner.

102

No proof of process conformance

Operations

Every process should have a deliverable and evidence of conformance. Demand this.

103

Sweating the small expenses

Executive

Some things are worth optimizing for costs, but most aren't. If it's in the ballpark of affordability and you aren't locked in for a long time, then sign and move back to driving revenue.

Run the play:Budget Creation
104

Tolerating non-sales activity from sales team

ExecutiveSales & Marketing

The only valid activity from S&M is sales activity. Don't let the activity shift to non-core things.

105

Burning out

Executive

Make sure your team has appropriate recharge time. Make sure you do too.

106

Founder stepping into a subordinate’s process

Executive

Once a process is set and ownership is given, then founders need to get out of the way. Stepping back in subverts growth.

107

Letting AR age

Executive

Get on top of AR and do it quickly. Bad AR processes is like running a marathon and then deciding not to cross the finish line.

108

Fuzzy organizational chart

Executive

Every core activity in your company needs a person accountable for it. Don't let overlapping responsibilities cause underperformance.

109

Expecting customers to expand without a pitch

ExecutiveCustomers
110

Believing the hype of a company pitch

Executive

A pitch is exciting, but be careful to stay grounded. A pitch necessarily must show the financial benefits of success. It can easily disorient founders from the task at hand. Stay focused.

111

Developing product in a vacuum

ExecutiveDevelopment

Products are dynamic processes of interrelating variables: customer pain, problem frequency, solution believability, solution efficacy, and customer expense. These (and prob more) cant be determined without SMEs working in concert with development.

112

Tolerating low resolution product roadmaps

ExecutiveDevelopment

A product roadmap is an investment plan. Don't tolerate low resolution on the plan. Three swim-lanes and quarterly columns is too loose for such an important investment. Get tight.

113

Poor performance: Root cause all missed goals

ExecutiveDevelopmentSales & MarketingOperations

Software companies are all about people. Poor performance can become cultural. Dive in on missed goals (budgets, promises, etc.) and find the reasons with your team. Don't let it slip by; even the small stuff.

114

Accepting the phrase “we’re too thinly staffed”

Executive

Every software company, regardless the size, is ‘too thinly staffed.’ This is because every product can go deeper, get bigger, etc. Dev never ends and customers never finish giving requests. Sit in this tension and focus on what you can control.

Run the play:Executive Execution
115

Letting the same issues come up

Executive

There are tons of tensions in software companies. Don't let problems keep emerging (similar to #93). When you hear your team talk about a problem more than once, stop and dig in and help them solve it. Unmanaged problems grow like debt and are harder to control.

116

Not managing expectations

Executive

Investment commitments slip, customer interest wanes, potential exit conversations die... life is full of disappointments. Don't magnify them by passing expectations down the line without managing them.

117

Expecting too much out of software ‘automation’

ExecutiveDevelopment

Software magnifies human potential; it doesn't replace it. Don't expect software to be a silver bullet that can operate without human intervention. Always ask what human intervention is the product magnifying.

118

Protecting the idea too much

Executive

Ideas succeed through execution. Stifling execution in the name of protection prevents success.

119

Not being firm and clear on terminations

Executive

If someone isn't working out, then make a decisive clear move. Don't expect them to catch a hint and leave. Terminate them with grace, honesty, dignity and truth. Be clear and definitive.

Run the play:Employee Agreement
120

Not forcing engineers to QA their own submissions

Development

Engineers must QA their own submission. Failure to do so threatens the stability of the product. The QA function should identify root causes on all downstream issues and ensure dev engineer QA occurred.

121

Failing to incorporate contingency in customer contracting

ExecutiveSales & MarketingCustomers

Some customers need to extract a pound of flesh to feel good about a transaction. Its best to have options in your contract that allow you to give that accommodation while still preserving your business. Set a couple out of market elements in the contract.

Run the play:Contract Playbook
122

Not firing a customer

ExecutiveCustomers

Sometimes customers need to go. Customer expectations can mess up a product when they aren't aligned. Holding onto customers at all costs will result in disaster.

123

Underinvesting in employee onboarding

OperationsExecutive

Your team is your most strategic resource. Onboarding the team is the most important process in your company. Don’t neglect it. Don’t expect people can gain context, history and awareness of the plan on their own. Invest in onboarding.

Run the play:Training Process
124

Only selling to one customer.

Sales & Marketing

Don't put all your eggs in one basket for one customer. Make sure you are talking to multiple potential customers at one time.

125

Getting starstruck by big name companies.

Executive

Don't let the name of a company or organization convince you to take part in something just because of who they are. Only take part in something if it will add real value to your company. Your time is valuable. Don't waste it.

Run the play:Sales Philosophy
126

Not having clear messaging.

Sales & Marketing

People need to easily understand what your product is. If you don't have clear messaging, you will struggle to sell.

127

Making costly business decisions based on investors soft commitment.

ExecutiveOperations

Fundraising isn't completed until there is cash in the bank. Don't make large business decisions based on investor's commitment without having the cash to pay for it.

128

Undervaluing culture

Executive

Culture Flywheel - the more you invest into your company culture, the more devoted your employees are to the company which helps to have more effective employees which drives revenue.

Run the play:Define the Mission
129

Outsourcing hard decisions

Executive

Part of being a founder is making the tough calls. Don’t make other people do this for you. Delegating when you feel the urge to run is a guarantee for failure.

Run the play:Executive Execution
130

Expecting a customer to expand without selling

Sales & Marketing

Pay requires work and work requires effort. Don’t expect customers to expand without sales effort.

131

Busy work

Operations

Stop wasting time on things that aren’t going to grow your company.

132

Too broad of product

Development

Your product needs to be solving a specific need for a specific group of people. The broader the product, the harder it will be to sell. We’ve never seen a product that was “too” small.

133

Switching target customers too quickly

Sales & Marketing

It takes time to figure out the correct messaging and channels to reach your customers. Don’t be so quick to pivot to a different customer base. Fitting your product to a need is hard. Ignoring other needs that are responding to you at the same time is harder.

134

Happy ears with customers

Sales & Marketing

Be careful to not just hear what you WANT to hear, but actually hear what the customer is communicating. People don’t like letting others down. They will be indirect with their “no”. Always assume the “no” as a base hypothesis and let the opportunity earn your time.

135

Not owning the customer service delivery

Sales & Marketing

You need to own every part of the customer journey. If things go awry, understand why and do what you can (within reason) to make the customer experience as seamless as possible. A small product makes this easier!

136

Not changing the cash model

Executive

Your cash model needs to be continually updated (~every quarter) to match what your current reality is to have a realistic view of the cash forecast. It doesn’t matter who you delegate it to, the founder is always responsible for the accuracy and reality of the cash model.

Run the play:Cash Flow Forecast
137

Missing meetings (hiding from hard convos, postponing hard convos, etc.)

Executive

When something frightens you, lean in. Avoidance and ignorance will result in the outcome you most fear.

138

Not prioritizing revenue early enough

Executive

Revenue should always be top of mind, not matter the stage of the company. It’s your number one.

139

Disjointed pricing with sales cycle

Sales & Marketing

Your pricing should be inline how long your sales cycle is. The less you charge you customer, the shorter the sales cycle should be (and vice versa). Use 2 weeks for 20K ACV as a guide.

140

Not using Golden Section’s Recruiting arm (or hiring Continuum) and spending too much time hiring

Executive

Hiring takes more time than you think. Utilize the resources that Golden Section provides. (If you are using Guide Services, you get 4 free hires every year!)

141

Disconnecting from partners (isolating)

Executive

Being a founder is tough and you will face many challenges. Utilize your partners. They are there to help.

Run the play:Board of Directors
142

Not proactively managing cash

Executive

You need to always have a handle on your cash position (i.e., burn and runway). Cash is king! Hopeful thinking isn’t an antidote to chaos. Get caught without cash and you’d be better off running naked through Times Square.

Run the play:Cash Flow Forecast
143

Inviting customer discontent

Operations

If you ask someone for what they’re pissed about, you’ll get an answer… if a trash collection company asks people if they smell something, they will smell it whether they actually can or not. Don’t put discontentment in your customers’ mind.

144

Waiting for the perfect product before selling

Development

If you wait until your product is perfect to sell, you will never sell anything. Perfectionism will be the death of your company.

145

Hiring isn’t enterprise value creating

Operations

Hiring doesn’t directly correlate to creating value. Make sure you aren’t depending too much on others to drive revenue for your company.

146

Hire better than you

Executive

Don’t be fearful of hiring someone who is better than you at something. You should hire people to fill in your weak spots.

147

Avoiding tough but proactive decision making

Executive

Delaying difficult decisions only makes problems worse. Proactive decision-making prevents crises and builds long-term stability.

148

Changing value proposition after receiving captial

Executive

Stick to the vision investors backed. Pivoting too soon erodes trust, confuses customers, and risks losing momentum. Secure alignment before making strategic shifts.

Run the play:Define the Mission
149

Lacking agility to adapt to market shifts

Executive

Markets change, and rigid businesses get left behind. If you can’t pivot when needed, you’ll be watching from the sidelines. Bend so you don't break.

150

Prioritizing brand over financial health

Executive

A sleek brand won’t save a sinking ship. Flashy marketing and reputation matter, but if your finances crumble, so does your business. Keep the lights on first, then worry about the font choice

151

Expecting sales hires to sell like founders

ExecutiveSales & Marketing

Founders forget how long it took them to learn the product and market. New hires need time, training, and clear process to catch up. Don’t just hand off sales and hope, simplify the process, bake in support, and budget for the real cost of getting them fully productive.

152

Forgetting You're Part of a Bigger Ecosystem

Executive

You don’t operate in a vacuum. Competitors emerge, power shifts, and new players change the game. If you aren’t watching the full ecosystem, someone else will, and they’ll use it against you.

Run the play:Vertical Specific
153

Diluting Effort Instead of Concentrating Force

ExecutiveSales & Marketing

Progress requires concentrated force. Spreading your energy across 25 half-baked strategies won’t get you anywhere. Pick one, apply real weight, and see if it moves. You can’t cheat physics.

154

Revolving Door of Technical Talent

DevelopmentExecutive

If every product update comes with a new engineering lead, you don’t have a team, you have a temp agency. Talent turnover kills product memory and momentum.

Run the play:Dev Org Chart
155

Services Should Support Product, Not Replace It

Sales & MarketingOperations

If your customers only interact with your team and not your product, you’re running a services business, not a software company.

156

Too Many Conversations, Not Enough Closures

Sales & Marketing

If you're always “in talks” but never “signing deals,” you’ve built a vibe, not a sales funnel. A full calendar doesn’t pay the bills.

157

Overbuilding Function, Underbuilding Form

DevelopmentExecutive

Users don’t experience your product’s codebase, they experience how it feels. Function may be strong, but without form it lands flat. Don’t let utility outshine usability, even great tech dies if no one enjoys using it.

158

Scaling a Broken System

ExecutiveSales & Marketing

Pushing for volume when the engine is cracked just makes the breakdown faster. Growth only works if the foundation is sound. Pause, check your unit economics and ICP, and then pour gas on it. Don’t sprint the wrong direction.

159

Quitting Strategy Too Early

ExecutiveSales & Marketing

Founders kill strategies before they’ve run long enough to know if they work. Outbound email isn’t broken because you sent 200 messages. Advanced teams send 10,000 a week without blinking. Don’t confuse “we haven’t given it enough reps” with “this doesn’t work.”

160

Avoiding Debt as a Strategic Tool

Executive

Debt is a tool, not a failure. Founders who don’t understand how debt works often avoid it entirely, even when it could extend runway, preserve equity, or reduce risk. Ignorance here quietly limits strategic options.

Run the play:Cash Flow Forecast
161

Disregarding Qualified Opportunities You Didn't Source Yourself

ExecutiveSales & Marketing

Founders often trust only the deals they originate. Ignoring qualified inbound or partner-sourced opportunities can stall growth and delay access to capital, customers, or strategic leverage.

Every mistake has a play.

The Vertical SaaS Playbooks are the other half of this list: 66+ operational plays across executive execution, sales, customers, operations, development, and vendors — each one built to keep a mistake on this page from happening to you.

Open the Playbooks