Why 40% of executive hires fail (and how to make yours stick)

According to a Heidrick & Struggles study covering 20,000 searches, 40% of executives hired at senior level are pushed out, fail or quit within 18 months.

Other studies land in the same range: close to 50% according to DDI, and between 27 and 46% in the analyses compiled by McKinsey.

The causes rarely lie in the candidate's technical competence. They almost always lie in a poorly defined role, an underestimated cultural mismatch and an onboarding left to chance.

Here is what those failures have in common, what they cost, and how to avoid them.

What do the numbers actually say?

Three sources converge. Heidrick & Struggles, from 20,000 executive searches, found that 40% of senior hires are pushed out, fail or quit within 18 months. DDI, in its Leadership Transitions study of 1,700 HR executives, measured a failure rate close to 50%. The analyses cited by McKinsey put the range between 27 and 46% depending on scope.

Remember the order of magnitude rather than the decimal: between a third and half of executive hires do not reach their second year. For such a structuring decision, that is a failure rate nobody would accept on an industrial investment.

Why do these recruitments fail?

First cause: the role is poorly defined. Many companies recruit a title ("a sales director") instead of recruiting an outcome ("build a sales team that no longer depends on the founder, within 18 months"). Without a definition of the problem to solve, each side projects what it wants, and disappointment is mechanical.

Second cause: the CV outweighs the context. An executive who thrived in a large group can fail in an SME with no support teams, no budget and no established processes. The question is not "has this person succeeded?" but "have they succeeded in conditions comparable to ours?".

Third cause: cultural fit is underestimated. Most early executive departures are not about competence but about fit: decision style, relationship with the shareholder, way of treating teams. These things can be assessed, but rarely in two courtesy interviews.

Fourth cause: onboarding is left to chance. A red carpet for a week, then the new executive is on their own. Yet the first 90 days determine everything that follows: legitimacy with the teams, the relationship with the shareholder, the first visible decisions. Notably, the compiled research shows that structured transition support cuts the failure rate from over 40% to around 10 to 15%.

What does a failed executive hire cost?

The direct cost is the most visible: salary and charges paid for 12 to 18 months, severance, fees for the replacement search. For a 180,000 euro package, the bill quickly passes 300,000 euros.

The indirect cost is the heaviest: strategic decisions delayed or wrong, destabilised teams, sometimes a cascade of departures among your best people, clients who sense the drift. Eighteen months of failing commercial leadership cannot be caught up in three.

And the opportunity cost: while the hire fails and the search restarts, competitors move.

How do you make an executive hire stick?

Define the role by expected outcomes. Before any search, write down the 3 to 5 measurable results expected at 12 and 24 months. That document, not the generic job description, is the reference for interviews and evaluation.

Assess in situation, not only in interviews. A case study on a real company problem, a working session with the leadership team, conversations with future peers. An executive should be judged on how they decide, not on how they tell their story.

Take referencing beyond politeness. In-depth references with people who saw the candidate in difficult situations, probing the precise conditions of their successes and failures.

Structure the first 90 days. A written onboarding plan: who to meet, which decisions to take and which to defer, which checkpoints with the shareholder. And real follow-up through the first six months, not a single end-of-probation meeting.

Never recruit in a hurry. The most common trap: the seat is empty, everyone wants speed, and haste manufactures the next failure. When the function cannot stay vacant, an interim manager holds the role and clarifies the real need while the recruitment is done properly.

Frequently asked questions

How long does a serious executive search take? From 4 to 9 months between scoping and effective start, depending on the rarity of the profile.

Do you need a search firm? The value of a firm lies less in sourcing than in method: role definition, situational assessment, in-depth referencing and onboarding follow-up. Judge it on those steps.

Can a poor fit be corrected along the way? Sometimes, if it is detected early and named clearly. That is exactly what the six-month follow-up is for.

The Stratlane approach

Stratlane supports the recruitment of executives and senior managers, including multi-country searches, for micro-businesses, SMEs, mid-caps and group subsidiaries across Belgium, France and Africa. Our particularity: we have run companies ourselves, and we stay engaged until the integration succeeds, not until the contract is signed. When the seat cannot wait, we also provide the interim leadership. Contact: info@stratlane.be.

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Sources Heidrick & Struggles, internal study of 20,000 executive searches, and DDI, Leadership Transitions (1,700 HR executives surveyed), compiled by Adsum Insights 27 to 46% failure range in analyses cited by McKinsey, same compilation, Adsum Insights Manager hiring failure rates, Leadership IQ