The Expensive Infrastructure Decision Founders Leave to Chance
When you are building a business, every early decision feels weighted with consequence. The complexity of your tech stack can change the trajectory of your product development. Your corporate structure shapes your funding options for years. Founders know a misstep on any of these decisions can have devastating consequences. So they get lawyers. They model scenarios. They lose sleep.
Now ask yourself, how much of that same rigour went into thinking about how you will build and scale the team? What kind of leader do you want to be? How do you want people to perform and what are you prepared to do to ensure that?
It is really easy to believe that team culture will figure itself out. That you can worry about it once you are bigger. That because you know everyone’s name, you know what you’re building. But people are the ones who activate everything else; the product, the sales process, the customer relationship. Leaving the infrastructure that powers all of it to chance isn’t an oversight. It’s a risk that you have chosen not to price.
Culture Debt is Just as Expensive as Technical Debt
Companies invest carefully in the infrastructure that makes the business work, whether that’s to build, market, or sell. But none of those functions work without people. And yet, people infrastructure is rarely viewed as mission-critical.
In start-ups, this is especially costly — and the cost is often deferred, which makes it easy to miss. The longer a startup delays formalising its people and culture infrastructure, the more complex and costly it becomes. Early-stage organisations are small enough that informal practices can function without immediate consequence. Ad hoc hiring, undocumented expectations, handshake agreements — these feel like agility. They are not. They are debt.
What's manageable in a team of five becomes systemic risk in a team of fifty. Inconsistent hiring erodes culture. Undocumented roles create conflict. The absence of formal frameworks invites legal and compliance exposure. And rebuilding people infrastructure at scale means dismantling entrenched habits and correcting harm that has already occurred, all while the business continues to operate and cannot afford to pause. The cost of inaction scales with the organisation itself, creating culture debt that carries compounding interest.
The stories that we often tell ourselves about making People a “nice to have” function instead of an integral part of the business model are understandable. Starting a business is challenging — the workload is huge, the risks are high, and we think people stuff is easy.
We’re a small team… we’re all friends anyway… we’re like family… we don’t need formal structures. Not only is this not scalable, it perpetuates familiarity.
There's a mechanism that explains why this happens so predictably. In 1968, computer scientist Mel Conway observed that organisations inevitably design systems that mirror their own communication structure. His argument, which became known as Conway’s Law, states: Organizations, who design systems, are constrained to produce designs which are copies of the communication structures of these organizations.
Though published in the computer science magazine Datamation, Conway is explicit that this principle extends well beyond information systems.
Without a deliberate people strategy, an organisation won't build something new — it simply replicates what’s already there. In a startup, that means the culture won't be designed; it will be inherited. And by default, it will reflect the assumptions, behaviours, and blind spots of the founder.
The Cost of Ignoring What We Know
The case for people infrastructure isn't new — since the industrial revolution, the psychology of productivity has been an important area of research. And it has never been better evidenced.
Google has built its reputation on data and pattern recognition — and on using that data to optimise everything it touches. In 2012, Google turned its analytical rigour on its own teams. Project Aristotle studied 180 teams across the company, looking for what actually made teams perform. What they found confounded their initial assumptions. It wasn't talent density. It wasn't social cohesion outside work. It wasn't management quality. The single most consistent factor in high-performing teams was psychological safety — which Harvard Business School professor Amy Edmondson defines as a ‘‘shared belief held by members of a team that the team is safe for interpersonal risk-taking.’’
The implication for founders is direct: psychological safety isn't a cultural nicety. It's what determines whether your team's intelligence is actually accessible to you. A team that doesn't feel safe raising problems will still show up. They'll just stop telling you what you need to know.
The cost isn't only performance. It's retention — and specifically, the retention of the people most likely to leave. BCG's 2024 research found that in high psychological safety environments, retention increases fourfold for women and people of colour, fivefold for people with disabilities, and sixfold for LGBTQ+ employees. The people most likely to exit when safety is low are often those whose perspectives a growing organisation most needs. That's not a diversity argument. That's a business one.
And this isn't specific to Google. Gallup's 2024 meta-analysis, drawing on hundreds of studies across sectors, organisation sizes, and countries, found the same pattern: employee engagement directly correlates with productivity, profitability, and reduced turnover, absenteeism, and safety incidents. The evidence is consistent. The scale just varies.
For a masterclass in what happens when psychological safety is absent at scale, look no further than Volkswagen's 2015 emissions scandal. The company had installed software in millions of diesel vehicles that falsely reported emissions data — a direct violation of the US Clean Air Act — ultimately costing Volkswagen over $33 billion in fines, settlements, and reputational damage. Researchers at the University of Edinburgh's Business School studied the organisational conditions that made it possible: siloed departments, normalised negative reinforcement, and a culture in which raising concerns carried more personal risk than staying quiet. The scandal wasn't a rogue decision. It was what a culture of silence produces when the pressure is on.
What happened after matters just as much. VW didn't fix the emissions problem and then address the culture. They had to do both simultaneously — lifting barriers between teams, developing new rituals like “fuck-up nights” to destigmatise failure, rebuilding the conditions in which people would actually speak about incidents in the light of day. That's the real cost of absent infrastructure: you pay for it twice.
Unfortunately, for many people today, psychological safety in the workplace is still weak. MHFA England (Mental Health First Aiders) shared research earlier this year demonstrating a crisis in the UK workforce today. Over one third of the 2000 working adults in the research reported that they “don’t feel safe asking for help” and 15% reported “they have made preventable mistakes because they felt unsafe speaking up.” As Sarah McIntosh, Chief Executive of MHFA England, says “people choosing not to speak up is one of the biggest drags on performance.” That's not a wellbeing statistic. That's an operational one.
The research is consistent, the cautionary tales are well-documented, and the human cost is measurable. What remains is a leadership choice — to treat culture as the strategic investment the evidence shows it to be, rather than waiting for a crisis to make the decision for them.
People Structure Can Mitigate Growing Pains
Founders often assume that structure can be retrofitted. A study by Baron and Hannan tracking Silicon Valley startups suggests otherwise. The foundational model of how people, roles, and culture are structured — what they call an "employment blueprint" has a direct and lasting impact on valuation and growth. Startups that utilise an Autocracy blueprint and treat HR as a pure cost centre consistently produced the worst outcomes.Those built on a Commitment model, exhibiting “family style” cultural norms achieved the strongest results when those norms were embedded as deliberate, invested infrastructure rather than assumed as a byproduct of good intentions.
Most strikingly, companies that changed their blueprint mid-journey saw their success outcomes fall sharply. This is culture debt made measurable: the longer an organisation defers the intentional work of building psychological safety and cultural infrastructure, the more costly it becomes to course-correct — not just in human terms, but in the hardest of business metrics.
It's measurable because of what's actually at stake when you try to change course. Researchers Dave Logan, John King, and Halee Fischer-Wright spent a decade studying 24,000 workers across 24 companies and found that informal networks — the real lines of trust, influence, and communication — form in any organisation regardless of what the structure document says. These informal tribes determine whether change lands, whether people buy in, whether a new direction takes hold. You can redraw the org chart. That doesn't mean anything changes. The informal structures that feel like an asset when everyone fits in one room become load-bearing walls by the time you've doubled headcount. Restructuring that ignores them doesn't reform the organisation. It just irritates it.
Scaling an organisation is complex, and legacy structures rarely bend gracefully to new demands. As a founder moves from knowing every employee personally, to knowing everyone by name, to having little or no direct relationship with much of the team, administrative complexity quickly outpaces their capacity and becomes a liability.Without systems to guide that growth, the lack of structure breeds uncertainty, burnout, and misalignment, which lead to slower progress, higher turnover, higher costs.
The answer is to build early — but build forward. Sized not only for the company you are today, but for the company you're becoming.
How Much Culture Debt are you Carrying?
The research is clear — people infrastructure isn't a nice-to-have, it's a business-critical investment. But knowing that and acting on it are different things. This is what founders consistently underestimate about scale: the informal structures that feel manageable when everyone's in the same room solidify into the structures that determine whether change is possible at all. The question isn't whether they exist — they always do. The question is whether you designed them, or whether they designed themselves.
Sit with these questions and consider where your organisation stands today:
On foundations
If you had to write down your culture right now, could you? Or is it living only in the heads of your earliest employees?
Are your hiring practices documented, consistent, and defensible — or are you relying on gut feel and informal networks?
What would a new employee learn about your values from their first 30 days — and is that what you'd want them to learn?
On psychological safety
Do people in your organisation speak up when something is wrong, or do they wait to see which way the wind blows?
When a mistake is made, is the instinct to fix it or to hide it?
Who in your organisation is most likely to stay quiet — and why?
On scale
Are the informal structures that work today ones you'd be comfortable with at three times the headcount?
Which decisions are you still making personally that should already be systematised?
What would it cost you — in time, money, and talent — if you had to rebuild your people infrastructure from scratch at the size you are now?
Conclusion
Every founder understands that infrastructure determines what a business can become. You wouldn't scale a product on an architecture you knew would break, or enter a new market without understanding the legal or regulatory structure that governs it. And yet, the infrastructure that activates everything else — the people — is routinely left to chance.
The research and evidence are clear: culture doesn’t emerge. It compounds. Leave it undesigned and it will design itself, shaped by default behaviours, inherited assumptions, and whoever happens to be loudest. Build it deliberately and it becomes one of the most durable competitive advantages a business can have.
The founders who treat people as infrastructure: who ask the hard questions early, build systems sized for the company they're becoming, and create environments where people can do their best work don't just build better teams. They build businesses that last.
People are not a function that supports the business. They are the business. And like any infrastructure worth building, the best time to get it right was at the start.
The second best time is now.
Rachel Sosin is the founder of Six Degrees Strategy, providing coaching and training for women leaders and founders who want to lead with clarity, calm authority, and strong boundaries. James Kusena is the founder of RE:Works, a consulting and coaching practice focused on the people and culture infrastructure that empowers organisations to grow intentionally.