Here’s a question worth sitting with: when your innovation team presents its progress, what does “progress” actually mean?
If the answer is growing user numbers, proven product-market fit, successful pivots, and a healthy pipeline of learnings — you might be running a perfectly executed lean startup program. And if your goal is to sell the venture in five years at a revenue multiple, that’s probably fine.
But if your goal is to hold the venture and collect its profits? You may be measuring all the wrong things.
The dirty secret of lean startup
Lean startup is not a bad methodology. It’s a brilliant one — for the specific business model it was designed to serve.
That business model is venture capital. VC funds spread capital across hundreds of companies, accept that 90% will fail, and profit by exiting the few that are growing fast at a high revenue multiple — usually before any of them are actually profitable. Uber returned $2.6 billion to First Round Capital at its 2019 IPO, at a time when it was losing close to $1 billion per year. Snapchat returned $2 billion to Lightspeed Venture Partners at its 2017 IPO, having lost $515 million the previous year. Dropbox, Beyond Meat — the pattern repeats.
The point is not that these were bad investments. For VC funds, they were exceptional ones. The point is that venture capital funds can generate strong returns for their investors without a single portfolio company ever turning a profit. They exit before profitability becomes relevant.
Lean startup was built to serve that model. Launch fast, demonstrate product-market fit through a growing customer base, raise the valuation, exit at scale. The methodology’s core KPI — product-market fit — is not a measure of profitability. It’s a measure of exit potential.
When established companies, long-hold investors, and self-funded builders adopted lean startup wholesale, they imported a methodology optimized for someone else’s exit strategy — and then wondered why it kept producing ventures that looked like progress but couldn’t find a path to sustainable profit.
The compounding problem nobody talks about
When you build a venture to hold, you don’t get to exit before profitability matters. You need the venture’s actual cash flows, not a paper valuation. And that changes everything — because of one fundamental principle of finance: the time value of money.
Every year a venture burns capital without returning it, the cost of that capital compounds. At a 30% hurdle rate — typical for high-risk internal ventures — a $1 million investment doesn’t need to return $1 million. It needs to return $1.3 million after year one. $12.8 million after ten years. $50 million after fifteen. $189 million after twenty.
This is why lean startup’s “experiment until you find profitability” approach isn’t just slow for companies building to hold — it’s structurally self-defeating. Every year of experimentation raises the bar that profits must eventually clear. And the longer it takes, the more likely a CFO is to do the math and shut the venture down before it ever gets there.
Consider Amazon — the startup miracle that inspired lean startup thinking. Founded in 1994, it took nine years to reach operating profitability and accumulated $1.9 billion in losses along the way. It is today one of the most valuable companies in history. But if you calculate the average annual return it generated based on thirty years of realized cash flows — the way an established company incubating Amazon as an internal venture would evaluate the investment — the figure is approximately 33%. Just above the mid-range of the hurdle rate for new ventures. Extraordinary company, underwhelming return on the innovation effort.
That’s the built-to-hold problem in its starkest form: even if you build the fifth most valuable company in the world, lean startup’s timeline and capital intensity may not generate the returns you needed.
What’s hiding inside every market gap
There’s another reason lean startup struggles for companies building to hold — and it’s less discussed than the financial argument.
Behind every untapped market, every blue ocean, every “obvious” white space, there are structural reasons a profitable commercial market doesn’t already exist. Not because nobody has thought of it. Not because the technology wasn’t ready. But because there are deep, invisible barriers to profitability buried in the economics of the opportunity — hidden cost constraints that prevent margins from working, hidden value constraints that prevent customers from getting enough out of the product to pay a viable price.
Airbnb is a useful illustration. The obvious model for helping people earn extra money was matching them to side jobs. But that model harbored invisible barriers: verifying the quality of a stranger’s skills was expensive, and there simply weren’t enough hours in the day for most people to earn meaningful income that way. The value ceiling was low and the cost floor was high.
Airbnb’s founders circumvented both barriers with a single insight: use the homeowner’s home itself as the income-generating asset. A home is a sunk cost — it doesn’t need to be priced into the rental rate. The income generated per hour of effort was dramatically higher than any side job could produce. And verifying the quality of an accommodation was far cheaper and more scalable than verifying the quality of a person’s skills.
That one structural insight didn’t just improve the economics — it transformed them. It’s why Airbnb could undercut hotels by 30% or more while still generating strong returns, and why it could scale faster and with less working capital than competitors.
Lean startup’s build-and-test approach will eventually surface these kinds of barriers — but it surfaces them in market, after capital has been spent, after a product has been built, after a team has been hired around a business model that doesn’t work. Engineering research shows that making a change once a solution has been prototyped is 100 times more costly than making it at the design stage. Discovering a structural flaw in market — the most expensive place to discover anything — can be 1,000 times more costly than catching it on paper.
The question is not whether these barriers exist. They always do. The question is when you find them.
A different framework for a different goal
Over the past decade, working with corporate incubators at Barclays, Pearson, BMW, Disney, and Mars — and through Cornell University’s Built to Hold DesignLab — we’ve developed an alternative framework called FIT Startup.
FIT Startup starts from a different premise: that venture building presents genuine uncertainty, but not complete unknowability. There are well-established laws that govern customer behaviour, cost structures, and market dynamics — a century of research in psychology, economics, sociology, and operations that tells us what works and what doesn’t, before a single dollar is spent on building.
The name is an acronym for three principles that distinguish it from lean startup:
Financial vital signs — two metrics that every venture must track from the outset. The first is minimum customer ROI: a conservative estimate of how much value the product delivers to customers relative to what they pay. Research shows customers won’t reliably adopt a new solution unless the value is dramatic — 50 to 100 times what they pay for low-ticket products, 3 to 10 times for high-ticket ones. The second is financial margin of safety: how much unforeseen cost the venture can absorb and still be profitable. Given that the average cost overrun on complex projects is 62%, ventures need to be designed with substantial buffer built in.
Invisible profit barriers — the structural constraints hiding inside every market opportunity. FIT Startup systematically surfaces these before building begins, and redesigns the venture from the ground up to circumvent them. The goal is to find Airbnb’s “use the house” insight on paper, not after eighteen months in market.
Testable train of logic — a rigorous reasoning chain that draws on established science to evaluate strategic decisions analytically. Instead of building a minimum viable product to test whether an idea can work, FIT Startup builds a rigorous argument for why it should — and identifies precisely what needs to be tested, in what order, at minimum cost.
The result is a design process grounded in what engineers call robustness and resilience: ventures built to be profitable not under ideal conditions, but under real-world ones — where customers are fickle, costs run over, and the market rarely behaves as modelled.
Who this matters for
FIT Startup was developed for established companies building ventures to hold — but the same logic applies to anyone for whom real profits, not exit multiples, are the benchmark of success.
That includes long-hold investors who can’t diversify away a 90% failure rate across a large portfolio. Self-funded and bootstrapped entrepreneurs who depend on the business’s cash flow from the start. Deep tech and hard tech founders whose long R&D cycles mean they may have one shot at getting the commercial model right. And impact investors whose goal — building enduring markets that solve real problems — ultimately rests on ventures achieving sustained profitability, not impressive growth curves.
For all of them, lean startup’s promise of “experiment until you find it” is not a strategy. It’s a hope. And hope compounds poorly.
The full paper — “Built to Hold: Designing Ventures for Profits, Not Exits” by Erik Simanis, Co-Director of the Built to Hold Design Lab — is available on request. If the ideas here resonate with challenges you’re navigating, we’d welcome a conversation.