"We need a new CTO" is one of the most common conclusions a founder reaches under pressure, and it's right often enough that the pattern is easy to trust blindly. But I've sat across the table from enough boards having this conversation to say the diagnosis is wrong at least as often as it's right — not because the CTO is secretly great, but because the actual problem is a role that was never matched to what the company became.
The founding engineer who's now managing 40 people
The person who built your v1 architecture solo and the person who runs a 40-engineer org through three VPs are different jobs requiring different skills, and very few people are excellent at both by default. If your CTO hasn't managed past 8-10 direct reports before, and is now three levels removed from the code, the failure you're seeing — missed deadlines, unclear priorities, engineers who don't know what "good" looks like — may be a management-scaling problem, not a technical judgment problem. Those have different fixes: a VP of Engineering hire underneath them, coaching, or restructuring reporting lines, all of which are cheaper and less disruptive than a CTO search.
The technical strategist doing execution work
The inverse also happens: a CTO who is genuinely excellent at architecture and technical strategy is spending 70% of their week in sprint planning and code review because nobody backfilled an engineering manager layer as the team grew. The complaint from the board — "we don't feel the technical vision" — is accurate, but the fix is hiring the layer beneath them so they can operate at the altitude they're actually good at, not replacing them.
The role that changed without a conversation
Sometimes the company's needs have genuinely shifted — from "ship fast and find product-market fit" to "scale reliably and pass enterprise security review" — and the skill set that was exactly right for phase one is a mismatch for phase two. This is a real reason to change leadership. But it's worth naming explicitly and separately from "this person underperformed," because the conversation, the transition, and what you look for in a replacement are all different when the honest story is "the job changed" versus "the hire was wrong."
How to actually tell
Look at what's failing specifically. If the failures are in people management, delegation, and org design, that's a scaling and hiring-support problem. If the failures are in architectural judgment, technology bets, or an inability to reason about tradeoffs at the level the business now needs, that's closer to a genuine fit problem. An outside technical read, done with the CTO's knowledge rather than behind their back, usually surfaces this faster and more fairly than a board debating it in the CTO's absence.
This is one of the more common reasons boards bring me in on a short engagement — not to replace anyone, but to get an honest read on where the actual constraint sits before an expensive and disruptive decision gets made on incomplete information. See how the advisory retainer works.
Wrestling with this on your board right now?
Tell me what's happening and what decision the board thinks it's facing.
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