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Founders, Friends, and the Hardest Decisions You'll Ever Make

I've started three companies and made almost every co-founder mistake possible. Nobody talks about this stuff honestly — here's everything I've learned the hard way.
Founders, Friends, and the Hardest Decisions You'll Ever Make

I was as pale as a person can be. My wife took one look at me when I got home and asked if I was okay. I told her I thought I had a stomach virus. I ran upstairs and threw up.

I didn't have a virus. I had a panic attack.

What happened that day: a new board investor had just told me, in my very first meeting with them, that one of my co-founders needed to be moved out of their C-level role. And I had no idea how to do it.

I've started three companies. I've worked with my absolute best friend, with people I'd never met before we decided to build something together, with founding teams as small as two and as large as five. I've made almost every mistake you can make with co-founders — and had to live with the consequences.

This post is about the situations almost no one talks about openly: not how to find a co-founder, but what happens when the relationship breaks, changes, or needs to end. If your company goes beyond a demo day, this topic will probably make or break it. And the founders who handle it well are the ones who thought about it before things got hard.


Lesson one: Implement founder vesting. No exceptions.

In my first company, I started not one but two companies at the same time with my best friend — truly my best friend in the world. We did what almost everyone does: went to a lawyer, incorporated, split equity roughly 50/50. Our lawyers gave us one piece of advice I ignored completely: implement founder vesting.

Founder vesting means your equity vests over time — typically four years. You don't own it all on day one. If one founder leaves after a year, they don't walk away with the same stake as someone who stays and grinds for the next decade.

I thought: "We're best friends. We trust each other. We don't need this."

About six months in, my friend ran into serious family issues. He came to me and said he couldn't work full-time anymore — maybe two or three hours a day, handling the finances. I wanted to support him. I cared about him far more than I cared about the abstract concept of "the company" in that moment. So I said yes.

The result: I worked full-time. He worked a few hours a day. We owned the same percentage. The company didn't succeed. We ended up selling it mainly to recover the investment.

The lesson was painful and clear: you must do what is right for the company, not what feels emotionally easier in the moment. That's much harder when your co-founder is also your closest friend. And it starts with a structure that aligns outcomes with contributions.

Implement founder vesting from day one. Four-year schedule, one-year cliff. Do it even — especially — when it feels unnecessary.


Lesson two: When no one else will say it, you have to.

In my next company, I was determined not to repeat past mistakes. We set up legal structures properly. We implemented vesting. There were five of us as founders, and over time I became CEO.

One co-founder — I'll call him X — had become a real friend as we built the company together. But as time passed, something shifted. He began to disengage. The work he was doing no longer excited him. His engagement dropped noticeably.

The other founders noticed. They came to me privately, one by one, to express their frustration. But none of them wanted to confront him directly. No one wanted to be the bad guy.

I had just read The Hard Thing About Hard Things by Ben Horowitz — a book I've since reread multiple times. One idea from it reshaped how I think about leadership: as CEO, your primary commitment is to the company. Not to any individual. Not to yourself. You have a fiduciary responsibility to do what's best for the company, even when it's personally brutal.

So I set up a roundtable with all five founders, including X. I expected the others to say out loud what they'd told me privately.

I opened the meeting. Invited everyone to share what they were seeing.

Silence.

All the strong opinions, all the frustration — gone. No one wanted to say it in front of him.

I had a choice: retreat, blame the confusion, avoid the confrontation. Or honor my responsibility as CEO.

I put everything on the table. I said out loud what everyone had told me privately. I told X that his level of engagement couldn't continue. He had a choice: commit fully and change how he was operating, or leave.

He chose to leave. It got personal. I was the only bad guy in the room, even though I wasn't the only one who'd raised the concern. It was one of the hardest things I'd done in my career up to that point.

Two things emerged from that episode that I carry with me still:

Handle founder exits legally, not just emotionally. When a founder leaves, get proper legal releases at the time of exit — not just whatever is in your original incorporation documents. Future investors will dig into the cap table. Lingering rights or ambiguous exits will come back to haunt you.

This is not an edge case. It's part of the job. Founder departures — due to misalignment, performance, or changed aspirations — are a recurring pattern in startup life. Treat it as a capability you need to develop, not a one-time crisis.


Lesson three: Move faster than feels comfortable.

Fast forward. Same company, different phase. Over 100 people. A new investor on the board. At my very first board meeting with them, they told me a co-founder needed to move out of their C-level role.

That's when I went home and threw up.

What followed was months of avoidance, then months of slow, honest conversations. What I discovered surprised me: the founder didn't actually want the big leadership role. They were more interested in R&D work — solving hard technical problems, not managing a large organization. When I finally had that direct conversation, they were almost relieved.

We transitioned them into a senior R&D-focused individual contributor role. It suited them. It freed us to hire a leader built for that scale. And eventually, over six to twelve months, they decided they didn't want to stay long-term either. We parted ways on good terms.

The outcome was fine. The process took too long.

I stretched what could have been a four-month process into over a year. Prolonged ambiguity is painful for everyone and harmful for the company. The person in the wrong role knows it. Their team knows it. You're not protecting anyone by delaying — you're just spreading the pain over more time.

Move faster. Not ruthlessly — honestly. Assume the other person is an adult who can handle a real conversation. In my experience, when you open up and talk directly, you often discover they feel the misalignment too.


Lesson four: Revesting aligns incentives with the actual journey.

If your company is successful, it won't be a two-year project. It might be a decade or more. That length creates a problem that most founding teams don't think about until it's too late: revesting.

Here's the scenario. You've raised your B round. Several years have passed. Most founders have vested a large portion of their equity — maybe 50% or more. From that moment on, a founder can leave with an enormous stake while there's still a massive amount of work ahead.

The pattern I believe in: after a meaningful milestone like a B round, take whatever equity remains unvested and reset it to vest over a new four-year period.

This isn't about squeezing founders. It's about acknowledging reality. The company's hardest and most value-creating work may still be ahead. Incentives should align with that future work, not just the years already behind you.

Revesting protects the company, aligns the founding team with the next chapter, and signals a shared commitment to seeing it through.


Lesson five: Decouple "founder" from "must be in charge."

Not every person who starts a company is meant to be an executive at scale. This is a truth that companies ignore for too long, and it creates serious drag on growth and culture.

At around 100 people at BenchSci, we started to see clear mismatches. Some founders were exceptional innovators and problem-solvers. Their commitment was off the charts. But managing teams, running processes, and handling organizational overhead didn't align with their strengths — or their interests.

So we made a deliberate shift. Some founders moved from leading teams to becoming senior individual contributors — what you might think of as internal fellows. They didn't manage teams. They owned the hardest, most forward-looking problems in the company. Their impact stayed enormous. But the way they created it changed.

To do this, you have to tackle ego directly. Many founders tie their sense of worth to their title, team size, and place in the org chart. The internal story is: "I'm a founder, I should be a VP, I should have reports."

At a certain scale, that logic breaks down.

Being a founder is not a permanent license to run a function. After a certain point — measured in years, headcount, or funding rounds — founder status should stop being a trump card in organizational design. Founders should be placed where they can add the most value going forward, not where their ego is most comfortable.

That includes the CEO.


If I were starting a company today

Across three companies and every mistake I've described, one principle keeps reappearing: your ultimate commitment is to the company. Not to any individual. Not to preserving friendships. Not to protecting your own status or comfort.

If I could compress everything into a checklist for someone starting out — or for someone who already sees these situations coming — it would be this:

Implement founder vesting from day one. Four years, one-year cliff. Do not skip this because you're friends.

Plan for revesting after major milestones. Around a B round, reset remaining founder equity to a new vesting period. Align incentives with the next chapter, not the last one.

Treat founder exits as normal, not exceptional. People leave. Some can't keep up. Some don't want the next phase. Some outgrow the company before it outgrows them. None of this is a failure — it's a pattern. Prepare for it.

Clean up exits legally in real time. Proper releases at the moment of departure. No loose ends that will surface during future fundraising.

Talk about the "divorce" before you need to. From the beginning, ask: what happens if this doesn't work between us? What if one of us outgrows the other's capabilities? Under what conditions do we revisit roles and equity?

Decouple ego from role. Place people where they create the most value now — including yourself.

Move faster on hard conversations. They do not get easier with time. The longer you wait, the more damage accumulates.

Companies rarely fail from a single bad product decision or one wrong hire. They fail far more often because the people at the core can't or won't navigate these transitions.

You may throw up sometimes. You may lose sleep. You may lose friends.

But if you want to build something enduring, you have to be willing to have the conversations, make the decisions, and put the company first.

That's the real hard thing about the hard things.