The majority of senior go-to-market hires at pre-Series B companies leave within eighteen months. The industry treats each departure as an isolated hiring failure: wrong person, bad culture fit, not startup-ready. The pattern’s consistency tells a different story. When the same type of role fails repeatedly across different companies, different people, and different markets, the explanation isn’t individual — it’s structural.
The gap between the formal structure and the informal structure is where senior hires fail
The offer letter says VP of Sales. The organisational reality says: you can hire two SDRs but not approve discounts above 15%, you get the pipeline spreadsheet but not the product roadmap context, you attend the leadership meeting but the real decisions happen in a Slack thread between the founder and the CTO afterwards. The gap between the formal structure and the informal structure is where every senior hire fails. The formal structure gives them a title and a team. The informal structure keeps authority, information, and decision-making in the patterns established when the company was ten people. The founder doesn’t do this intentionally. They do it because the organisational design never changed — the informal decision architecture that worked at seed stage is still operating, and nobody has deliberately replaced it with a formal one. The senior hire sees the gap immediately. They escalate. The escalation is received as “not a culture fit.” Within a year, the hire is looking for their next role.
Three structural signals predict failure before the hire happens
Investors who know what to look for can spot these signals during diligence or board observation — before the recruiter is briefed. Authority concentration: if the founder still approves decisions in the function the senior hire is meant to lead — pricing, hiring within the team, customer commitments, product requirements — the hire will have responsibility without authority. This is the most reliable predictor and the easiest to diagnose: ask the founder how a specific decision in that function got made last quarter. Information asymmetry: if the senior hire won’t have access to the same strategic context as the founder — board discussions, fundraising status, product vision, key customer conversations — they’ll make decisions that conflict with information they don’t have, and the conflicts will be attributed to poor judgment. Decision architecture misalignment: if the company’s actual decision-making is informal, relationship-based, and founder-centric, a senior hire operating through formal channels will appear slow, bureaucratic, and out of touch. They’re not. They’re operating in a system that doesn’t match the one described in their offer letter.
I’ve diagnosed this pattern in climate tech companies where the VP of Sales role has turned over three times in four years. Each departure was blamed on the individual. When I mapped the actual decision architecture, the diagnosis was the same every time: the role had a revenue target but no pricing authority, a team but no hiring autonomy, and a seat at the leadership table but no access to the product roadmap conversations that determined what they could actually sell. The founders weren’t withholding authority deliberately — they simply never redesigned the informal decision system that worked when they were doing everything themselves.
The compounding cost extends far beyond the individual departure
The cost of a failed senior hire extends well beyond search, compensation, and severance. The team the hire was meant to lead loses confidence — in the company’s judgment, in the role’s achievability, in the stability of their own positions. Customers who built relationships with the hire lose continuity. The board loses time and attention. And the founder, already stretched, absorbs the function back — confirming the pattern that made the hire fail in the first place. For pre-Series B companies where every senior hire represents a significant percentage of the leadership team, the compounding cost can set the company back twelve to eighteen months in organisational development — precisely the period when the scaling breakpoints hit hardest. Array Technologies went through a CEO transition in April 2022 under structural margin pressure. Capella Space replaced its founder CEO in October 2023. Each transition cost the company operational continuity at a moment when the market needed speed.
The structural fix takes days — the cycle of hiring, onboarding, and replacing takes eighteen months per iteration
The fix isn’t better recruiting. It’s organisational design work done before the hire. Define the decision architecture: what this role owns, what requires consultation, what the founder retains. Build the information architecture: what strategic context this role needs and how it will be provided. Design the interface: how the senior hire and the founder will work together, where authority transfers, and what happens when they disagree. This design work takes days. The cycle of hiring, onboarding, frustrating, and replacing takes eighteen months per iteration. Two iterations is three years. The maths should make the choice obvious. It rarely does, because “hire better” feels more actionable than “redesign the system.” For investors, the structural question before approving any senior hire is simple: map the real decision architecture. If authority, information, and accountability aren’t co-located in the role as designed, the hire will fail regardless of the candidate. Organisational due diligence — and specifically people due diligence that maps the decision graph rather than checking references — surfaces this pattern before the investment, preventing eighteen months of the same conversation at every board meeting.
If the same role has turned over twice, the third hire won’t fix it either. The decision architecture needs to change before the recruiter is briefed. Map the real authority structure before the next hire.