Reading · Five Doors - Know More

I love this framework because it is inspired by a fundamental, true human story about love.

It isn’t rooted in a Silicon Valley playbook, a McKinsey deck, or a growth-hacking seminar. It is rooted in the messy, heartbreaking reality of human relationships and love.

In December 2024, after a disappointing 2-0 loss to Juventus, Manchester City manager Pep Guardiola walked into the locker room and did something no one expected. He told his squad of millionaire athletes that his 30-year marriage was ending.

He didn’t share this as gossip, and he didn’t share it to show vulnerability. He shared it as a coaching principle.

According to an interview published by Germany’s BILD, Guardiola looked at his players and said:

“Guys, I want to confess something. I am getting divorced from the most beautiful woman on this planet.”

He paused, then delivered the crux of the lesson:

“Do I love her? Absolutely. Does she love me? Yes. But the passion was lost.”

Then came the mandate, directed at a locker room full of elite talent:

“I don’t want good players. I want players with passion. Whatever you do in your life, do it with passion.”

I read that quote and immediately thought of my cap table.

Because as an investor, I have watched dozens of startups die. And looking back, the ones that failed didn’t die because they lacked “good” players. They had great TAMs, solid unit economics, smart co-founders, and clean cap tables. They had the startup equivalent of a beautiful marriage with three kids and a nice house in the suburbs.

But they still died. Why?

Because the passion was lost.

Here is why Guardiola’s divorce is actually the single most important heuristic for assessing a founder today, and why “passion” isn’t a soft, cultural nice-to-have. It is Criterion #1.

Every VC has a diligence checklist. Product-market fit. Moats. CAC/LTV ratios. Team pedigrees. These are all necessary conditions. None of them are sufficient.

When I meet a founder now, I run them through what I quietly call the “Guardiola Test” I ask myself:

“If this company becomes merely ‘good’, profitable enough, stable enough, respectable enough, will this founder still be grinding here in Year 7?”

If the answer is, “Probably, yeah, it’s a solid career move and the equity will be worth a few million,” I pass.

If the answer is, “Absolutely. He/She would be trying to solve this exact problem even if we defunded her tomorrow,” I write the check.

Most failed startups don’t die from bad product. They die from “founder capitulation”. The moment the work stops being fun, the moment the grind outlasts the glamour, the moment the passion drains, the founder starts taking calls from recruiters. They start “exploring strategic options.” They start phoning it in. And a company being phoned in is a dying company.

Guardiola’s marriage had (based on BILD, I inferred):

✅ Love (Product-market fit)

✅ History (Traction and longevity)

✅ Family (Customers, employees, stakeholders)

✅ Compatibility (A good team and a clean cap table)

And it still failed. Because:

❌ “The passion was lost.”

You might argue that grit, intelligence, or domain expertise are more important than passion. You’d be wrong, primarily because passion is “upstream” of all of them.

“Passion generates grit.” Grit is just what passion looks like on day 1,400. You cannot “have grit” about something you don’t care about. Grit without passion is just suffering.

“Passion recruits talent.” The best engineers and operators have options. They don’t join your Seed round for the base salary. They join because they looked into the founder’s eyes and saw someone who would burn the building down before letting the vision die. That is contagious in a way a “good business plan” never is.

But there is a third reason, specific to the era we are entering: “Passion is the only thing AI cannot commoditize.”

As I wrote recently about AI-native incubators, we are currently launching software products at 1/50th of traditional R&D costs. AI agents can write code, run QA tests, generate UI/UX, and even draft strategy decks. The cost of “good” execution is plummeting toward zero.

But AI cannot give a damn.

The last irreducible moat in the AI era is a human being who is irrationally, obsessively, and un-killably committed to a specific problem in the world. Code is abundant. Strategy is abundant. Obsession is scarce.

Passion is not volume. It is not charisma. It is not a polished TED-style pitch. Those are performances. Real founder passion is “observable”.

Here is what I look for in the room:

1. They talk about the customer, not the company.

A passionate founder says, “These nurses are being crushed by paperwork and nobody gives a shit,” rather than, “We’re disrupting a $40B healthcare admin TAM.” The obsession is outward, not inward.

2. They know things no one else knows.

Not industry reports. Not McKinsey decks. Weird, specific, granular things. “The reason underwriting fails on commercial fleet policies is because of how dispatchers log fuel receipts on Tuesdays.” That’s not research. That’s obsession.

3. They get annoyed by the wrong things.

Passionate founders aren’t angry at their competitors. They’re angry at the status quo. They’re deeply annoyed by the friction their customers face. That anger is energy. It’s renewable.

4. They were doing this before it was a company.

The best founders were solving the problem for years before they incorporated. The startup is just the legal wrapper for an obsession that already existed.

Here is the nuance most “passion-first” investors miss.

Passion without adaptability is just delusion wearing a good outfit.

I have also passed on founders who were genuinely obsessed, but obsessed with a solution that the market was screaming did not work. They loved their product the way Guardiola loved his wife: deeply, faithfully, and fatally.

The best founders are passionate about the problem and ruthless about the solution. They will kill their own product in a heartbeat if the data says it’s not working.

So the Guardiola Test requires a secondary question:

“Is this founder in love with the problem, or in love with their answer to the problem?”

The first is Criterion #1. The second is a massive red flag.

Guardiola told his players: “I don’t want good players. I want players with passion.”

Translation for the startup ecosystem: “I don’t want good founders. I want obsessed ones.”

A “good” founder builds a competent company. An obsessed founder builds one that refuses to die.

In a world where AI is driving the marginal cost of execution to near zero, the only remaining scarcity is human obsession. What is not abundant, what may be the rarest thing in the economy right now, is a person who will spend the next ten years of their life, through every valley, every rejection, and every near-death moment, in pursuit of a problem they cannot “not” solve.

Because in the end, love isn’t enough. Talent isn’t enough. Logic isn’t enough.

The passion was lost, and the whole thing ended.

Don’t fund founders who have lost it. Don’t be a founder who has lost it. And if you’re leading a team today, tell them the truth the way Guardiola did: “Whatever you do in your life, do it with passion. Because the alternative is a beautiful thing that quietly dies.”

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The Guardiola Test: Why Passion is the Only Founder Metric That Matters

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