When One Cofounder Is Outgrowing the Other
This is the cofounder situation with no villain in it, which is exactly why it goes unaddressed for years. Nobody has behaved badly. Nobody broke an agreement. One of you has grown into the company’s current stage and one of you has not, and the gap gets wider every quarter while both of you pretend not to notice. It is also the situation most often misdiagnosed, because a founder who has not grown and a founder who has never been supported in growing look identical from the outside. This page is written for both sides of it.
What’s inside
This is a stage problem, not a verdict on anyone
What it looks like from each side
Four things the gap might actually be
The conversation nobody has
Options that are not removal
If you suspect you are the one being outgrown
Where Blomma fits
This is a stage problem, not a verdict on anyone
The skills that start a company are not the skills that scale it, and that is not a saying — it is a description of two genuinely different jobs. The early founder job rewards range, speed, personal output, and comfort with chaos. The later job rewards judgment at a distance, developing other people, holding a standard you do not personally enforce, and making fewer decisions more carefully.
Someone excellent at the first is not thereby good at the second, and the transition is not automatic. It requires accurate feedback, real support, and about a year of doing unfamiliar things badly. Almost no founding team provides any of that to itself.
So when one cofounder appears to have stopped keeping up, the honest first question is not about their capability. It is whether anyone in the company — including the founder now making the judgment — ever told them plainly what the new job required and helped them build it. In most cases the answer is no, which means the gap you are looking at has an untested cause.
That framing is not softness. It is accuracy, and it matters because the wrong diagnosis leads to removing someone who was fixable, or to two more years of managed disappointment when they were not.
What it looks like from each side
Worth laying out both, because each founder is usually convinced the other cannot see the situation.
From the side of the founder who has grown: decisions in your cofounder’s area need revisiting. You find yourself checking their work, or quietly routing important things elsewhere. Their team is not developing. In senior meetings they contribute at a level below the room, and you notice other executives noticing. You have started prefacing their name with an explanation. And you feel a low, constant guilt about all of it, which is why you have said nothing.
From the side of the founder being outgrown: the company feels less like yours. Meetings happen without you and you hear about decisions afterwards. Your scope has narrowed without anyone announcing it. New senior hires seem to have more authority than you do. You cannot tell whether you are struggling or being sidelined, and asking directly feels like an admission. So you work harder at the things you were always good at, which is the rational move and the wrong one.
Notice that both experiences are real simultaneously, and that both founders are avoiding the same conversation for opposite reasons. This is why it lasts years.
Four things the gap might actually be
Four causes, in the order worth testing.
Untested.Nobody ever said clearly what the role now requires. No specific feedback, no defined expectations, no honest conversation — just growing distance and work quietly rerouted. This is the most common and the most fixable, and a founder who has genuinely never been told cannot reasonably be judged for not responding.
Unsupported.They know there is a gap and have had no help closing it. No coaching, no peer group, no time to develop, while running a function at full stretch. Founders reliably fund development for the company and not for themselves or each other, then treat the predictable result as a capability ceiling.
Unwilling.They do not want the new job. Sometimes because they love the work they are good at, sometimes because they never wanted to manage, sometimes because their life has changed. Entirely legitimate, and the resolution is a role change rather than a development plan. The failure here is pushing someone into a job they do not want and calling it growth.
Genuinely capped for this stage.After real feedback and real support and a real attempt, the gap remains. This exists and it is not shameful — plenty of exceptional early-stage people are not executives at three hundred people, and plenty of exceptional executives would have been useless in the first year. But it is a conclusion to reach at the end of the list, not the start.
Most founders start at the fourth and never test the first three. That order is the error.
The conversation nobody has
The reason this situation persists is that both founders have strong reasons to avoid the only conversation that resolves it.
The founder who has grown avoids it because it feels like a betrayal of the person who was in the room at the start, and because they know their own part — the feedback never given, the development never funded. The founder being outgrown avoids it because naming it might make it true.
So it gets communicated structurally instead: scope narrowed, decisions rerouted, a new hire placed above them without discussion. Every one of those is a message, and it is received clearly. What it is not is a conversation they can respond to, which means it produces the demoralisation without any of the possible improvement.
The conversation itself has a shape. Name the specific gap, not the person — what the role now requires and where the current performance sits. Own your part explicitly, including the feedback you did not give. Ask directly whether they want this job, and mean the question, because the answer is often no and that changes everything. Then agree what support looks like and what you will both look at in six months. And write it down, because otherwise you will have this conversation again in a year having both remembered it differently.
Expect it to be one of the hardest hours of your working life. It is still considerably cheaper than three more years of the current arrangement.
Options that are not removal
Founders frame this as develop-or-remove, and the middle ground is where most of the good outcomes live.
A role that fits.The cofounder who is not right as VP Engineering may be an outstanding principal engineer; the one who is not right as COO may be a strong first product hire. This requires honesty about title and reporting line, which is the hard part — a nominal change with no real change in authority fools nobody and wastes the goodwill.
Narrow the scope and hire above or beside.They keep what they are genuinely good at; someone else takes what they are not. Works well when specified explicitly and badly when left ambiguous.
A real development attempt with a defined horizon.Coaching, a peer group, a mentor, and protected time, with an agreed review point. The defined horizon is what makes this honest rather than indefinite hope.
A founder role outside the operating org.Board seat, advisory, a specific project. Preserves the relationship and the contribution where the operating role genuinely does not fit.
All four are better than the two things founders actually do, which are nothing at all, or a sudden removal after years of silence that lands as a betrayal because — from the other side — it is one.
If you suspect you are the one being outgrown
If reading the second half of that earlier section was uncomfortable, this part is for you.
First: the signals you are reading are probably accurate. Founders in this position routinely doubt their own perception because nobody will confirm it. Narrowing scope, decisions happening elsewhere, a new hire with more authority — those are real signals and you are not imagining them.
Second: the gap is far more often untested or unsupported than it is a ceiling. You have likely never been told plainly what the role requires now, and you have almost certainly never been given real support for it. That is a fact about your company, not about you.
Third: raise it yourself. This is the single highest-value move available, and it inverts the situation. “I think the role has changed and I want to talk about whether I’m doing it well, and what would help” is a strong thing to say, not a weak one. It also gets you honest information, which is what you currently lack.
Fourth: decide what you actually want. The assumption that you should want the executive job is worth examining. Plenty of founders are happier and more valuable in a deep role than a broad one, and choosing that deliberately is a completely different outcome from having it happen to you.
Where Blomma fits
Both sides of this need the same thing and neither has it: somewhere to think without the other person in the room, and somewhere to practise a conversation that has no template.
Blomma is an always-on AI career coach with no stake in the outcome. If you are the founder who has grown, use it to work honestly through the four diagnoses before you conclude anything — particularly the uncomfortable question of whether you ever actually gave the feedback — and to prepare the conversation, including owning your part without collapsing the message. If you suspect you are the one being outgrown, use it to test whether what you are reading is real, to work out what you actually want from the next three years, and to prepare the conversation you would be initiating rather than receiving. Where the situation warrants a human who has been on either side, you can bring one in..
Cofounders growing apart at different rates is a predictable feature of a company that keeps changing shape, not evidence that the founding was a mistake. What determines how it ends is whether someone names it while there are still four options, or waits until there is only one.