McKinsey Finds the Outgoing CEO, Not the Heir, Derails Succession

McKinsey examined 200 family business successions and reached a conclusion that cuts against conventional wisdom: the biggest problem in most transitions was not the incoming heir. It was the outgoing CEO.

Fortune, which reported on the research, frames the finding as a reversal of the usual succession narrative. Family businesses around the world have long been stereotyped as institutions doomed by weak or unprepared second-generation leaders. The McKinsey sample of 200 successions suggests the stereotype misses the more common failure point — the behavior of the leader who refuses to let go.

The study's scope matters. Two hundred succession events represent a substantial evidence base for a research question that is usually answered with anecdote. And the population under study — family firms — controls for a variable that confuses most CEO-transition research: the successor is known years in advance, often from birth. If the heir were the binding constraint, family businesses would offer the clearest place to see it. Instead, McKinsey's data point back up the org chart.

The finding aligns with a broader pattern in succession literature. Incumbent CEOs in family firms typically hold dual authority — as top executive and as controlling family member — which gives them unusual power to shape, delay, or undermine a handover. A successor can be competent, groomed, and named, and still fail if the outgoing chief executive second-guesses the transition, withholds information, or clings to decision rights.

For the family businesses that dominate private enterprise in most major economies, the practical implication is direct: succession planning should devote as much rigor to the incumbent's exit as to the heir's preparation. Governance mechanisms — boards, defined transition timelines, clear post-handover roles for the outgoing CEO — become the tools that matter.

The research does not claim heirs are irrelevant. It claims the distribution of blame has been misplaced. That distinction should reshape how family firms, their boards, and their advisers allocate attention — and capital — during the most fragile period in a family company's life.