Succession planning has never mattered more, and the numbers explain why. Through the first half of 2026, 920 chief executives left their posts at companies tracked by Challenger, Gray & Christmas.
Boards have always absorbed exits. Retirements get planned for, resignations get managed, and the occasional abrupt departure gets handled. The exits themselves are rarely the problem.
The problem is what happens next. Finding the right replacement takes time.
There is briefing, there are interviews, and then there is a notice period the successful candidate has to work before they can start.
Six months is a realistic run for an appointment at this level, and that assumes everything goes well.
In the meantime, the job still needs doing. It gets picked up by other people on top of their own workloads, and it is rarely done to its full potential while that is happening.
For roles as critical as Chief Executive, that is the argument for starting the work before you need it. Part of the process should already be complete: the specification for what the next leader needs to look like, and a shortlist of names, internal and external, that the board already trusts.
When the resignation does land, half the battle has already been fought.
This blog is about how a board gets into that position, and what it takes to stay there.
What the gap actually costs
Harvard Business Review put a number on it. Badly handled CEO and C-suite transitions destroy close to $1 trillion a year in value across the S&P 1500 alone.
Part of that is external appointments made without a clear read on fit, who underperform and then leave within two years.
Part of it is internal promotions made two years too early, where a genuinely capable person is set up to fail in a role they would have grown into with more runway.
If you run a mid-market industrial, energy, life sciences, or technology business, the consequences this could have are:
- 12 months of stalled decisions while an interim holds the line
- A project or expansion that has been pushed back a year
- Two strong employees below the vacancy who left because they lost confidence in decision makers
None of that shows up anywhere on a balance sheet, but you feel it all the same.
Why succession planning stalls
Three patterns show up repeatedly.
The first is that the person best placed to drive the process has the least incentive to drive it. A sitting Chief Executive asked to lead planning for their own replacement will treat it as a low-urgency item. The evidence makes that clear.
Where independent directors led succession planning, 44% of boards treated it as a top priority. Where the CEO or executive team led it, that fell to 29%.
The second is that succession gets treated as an event rather than an ongoing discipline. It appears on the agenda when a contract is up for renewal or a governance review demands it, gets three hours and a document, and is then left alone.
In the meantime the market moves, internal candidates’ circumstances change, and the document ages badly without anyone noticing.
The third is the external blind spot, and it is the one we come across most often. Boards that would never approve an acquisition without understanding the market will appoint a chief executive with almost no view of who else exists.
The internal shortlist gets assessed in forensic detail. The comparison group it should be measured against is never assembled.
No chair wants to be seen approaching the market while the post is still filled, and the assumption is that looking outside means signalling something. It doesn’t have to. Roughly 45% of the executive searches we run are confidential, and that is exactly what SD Exec is built for: giving a board a live, honest view of the market long before anybody outside the room knows a transition is coming.
The gap is widest one level below the top
Most succession conversations focus on the Chief Executive, because that’s the role that gets the headlines.
It is not, however, the only role that should be included in your succession planning.
The layer that determines whether a board has options is the one underneath: the CFO, the COO, the Managing Director of the largest division or the technical leader who personally holds the key customer relationships.
Those are the roles that grow the people who could one day become CEO. Among companies that promote from within, the new CEO most often comes from the COO seat (55%) or the CFO seat (17%).
It is also the layer where a departure is hardest to see coming. A CEO’s unhappiness tends to leave a trail: board tension reported in the press, an investor publicly pushing for change or analysts guessing about who might replace them.
Nobody writes about whether your COO is happy. They take a call from a search consultant, think it over quietly across several months, and then resign on a Tuesday with a competitor’s offer already signed. With the board finding out only after the decision has already been made.
What readiness actually looks like
None of this requires a bigger budget. It requires treating succession as something you maintain rather than something you produce.
1. Map the external market before you need it. A live view of who the credible successors are, refreshed annually, turns a cold emergency search into a warm conversation with people you have already assessed.
2. Define the standard before you look at people. Agree what the role needs over the next three years rather than what the outgoing leader happened to be good at. Familiarity is not a selection criterion.
3. Benchmark internal candidates against the external market, on the same standard. This is the piece boards skip, and it cuts both ways. If your internal successor really is the strongest option, an honest comparison proves it and the appointment lands with far more authority across the business. If they aren’t, you would much rather find that out now.
4. Understand what would actually move a successor. Leaders worth appointing are not applying for anything, which is why we assess against six dimensions: Fit, Freedom, Family, Fulfilment, Fortune, and Future. Compensation is only one of them, and it is rarely the deciding one.
5. Keep it on the agenda annually, and put it in the hands of independent directors rather than the executive team.Write the emergency plan separately. A planned retirement and a sudden exit are different problems, and the second one has to be solved in days.
The real question for your next board meeting
So the question worth putting to the board isn’t whether a succession plan exists. Everyone says yes to that.
If your Chief Executive, your CFO, or the Managing Director of your largest division resigned this week, how many credible, assessed, contactable successors could you name by Friday?
Not job titles. Names, with a view on whether they’d take the call.
If that question is uncomfortable, it is far better to sit with it in a board meeting than in a crisis.
At Solutions Driven, that is the work we do before a vacancy exists. SD Exec runs confidential market mapping for boards preparing for a transition. It benchmarks internal candidates against the external market, rather than hoping the comparison turns out favourably.
And it assesses every appointment across all six dimensions of fit before a board sees a shortlist.
It is backed by an 18-month guarantee and a 97% right-hire, first-time record, because accountability for a leadership appointment shouldn’t end at offer acceptance.
Most succession gaps are not caused by a shortage of capable leaders. They are caused by boards meeting the market for the first time in the worst possible week.
If your next leadership transition is closer than your plan is, let’s have a conversation.
