When does an interim CEO before the family successor make sense?

An interim CEO before the family successor makes sense when the founder needs or wants to step back before the successor is ready, and the gap is a matter of years rather than months. It gives the company experienced leadership and the successor time to grow, but only if the mandate, the duration and the successor’s path are agreed openly at the start, with legal advice on the terms.

This article is for founders and the advisers around them. It looks at one option in detail. For the wider set of choices when a successor is not yet ready, see what advisors should recommend when the successor is not ready.

What do people mean by an interim CEO?

The word “interim” covers several different arrangements, and families often mean different things by it.

A short emergency bridge. Someone steps in for months after an illness, a death or a sudden departure, while the family decides what comes next.
A planned bridge. A professional CEO is appointed for a defined period, often a few years, with the stated intention that the family successor takes over afterwards.
A senior insider. A long-serving executive, such as the CFO or COO, holds the role until the successor is ready.
An open-ended non-family CEO. Professional management with no fixed end, where the successor may or may not become CEO later.

This article is mostly about the planned bridge, since that is where the family has the most choices to make. The emergency case is covered in when the founder falls ill suddenly.

When does it make sense?

The founder needs to step back now. For health, family or personal reasons, waiting for the successor is not realistic.
The successor is clearly the future choice, but not yet ready for the whole role. They may be young, new to the company or strong in one area and untested in others.
The business is going through something that needs experience. A refinancing, a major restructuring or rapid growth may need a leader who has done it before.
The family wants to separate ownership and management for a period, so that the successor can learn without carrying the whole company.

What are the real strengths?

Stability. The company gets an experienced leader while the family generation changes.
Time for the successor. They can build skill and credibility in a defined role, without the full weight of the CEO job too early.
A mentor. A good interim CEO can teach the successor things the founder cannot, including how a professional executive runs a company.
Professional practices. An outsider often brings reporting, planning and management routines that the business will need anyway.
Room for the founder to let go. Handing over to a professional can be easier, emotionally, than handing over straight to one’s own child.

What are the costs and risks?

It can be hard to unwind. If the interim CEO performs well, the board, the team and sometimes the founder may prefer to keep them. The successor’s turn keeps moving back.
The team learns to follow someone else. Senior managers transfer their loyalty to the person who decides. When the successor takes over, they inherit a team that has spent years taking direction from another leader.
Mixed incentives. A CEO who knows their role ends when the successor is ready has an unclear reason to make the successor ready quickly.
The successor is sidelined. If their role during the interim is vague, they can end up neither learning the job nor proving themselves.
Founder interference. If the founder still runs things informally, the interim CEO has the title without the authority, and good candidates will not accept that.
Cost. Experienced CEOs who accept a defined term are not cheap, and the terms of their departure need to be planned.

How do you set it up so the successor’s path is clear?

The difference between a bridge and a detour is mostly in how the arrangement starts.

Agree the mandate in writing

What the interim CEO is responsible for, what decisions stay with the board or the owners, and what success looks like at the end of the term. Developing the successor should be an explicit part of the mandate, not an assumption.

Set a duration and review points

A target period, with a review date, gives everyone something to plan around. The family’s lawyers should design the terms, including notice, incentives and what happens if the timing changes. What should a succession timeline look like shows how this fits with the ownership and family work that runs in parallel.

Tell the interim CEO the truth from the start

The candidate should know that the family intends the successor to take over, and roughly when. Hiding it to attract a stronger candidate tends to cause conflict later.

Give the successor a real job

A defined role with measurable responsibility, such as running a division, a region or a major project, and a seat in the senior team and in front of the board. Shadowing alone does not build authority.

Define readiness in advance

Agree, before the interim starts, what the successor needs to show: which results, which rooms, which relationships. Then review it openly with the successor, the board and the interim CEO.

Plan the second handover

There will be two transitions: founder to interim, then interim to successor. The second one needs its own preparation, including how it is announced and what role, if any, the interim CEO keeps.

Decide where the founder sits

If the founder stays on the board or as chair, the interim CEO needs to know how much room they really have. Clear rules here protect both the interim CEO and the successor.

What should the successor do during the interim?

Treat the period as preparation for specific rooms: board meetings, the senior team, key customers and banks.
Learn from the interim CEO deliberately. Ask how they make decisions and handle the board.
Build their own relationships with senior managers, not through the founder or the interim CEO.
Keep the readiness criteria visible, and ask for honest feedback against them.

How Second Chair™ fits

Second Chair™ does not recruit or advise on interim appointments. It prepares the successor for the rooms they will lead: six months of weekly one-to-one sessions tied to real board meetings, company addresses and family conversations, ending with a facilitated handover session and a signed Handover Charter that records which decisions move and when.

In short

An interim CEO makes sense when the founder must step back before the successor is ready and the gap is measured in years.
Its strengths are stability, time and often a strong mentor for the successor.
Its risks are an arrangement that never ends, a team loyal to someone else and a successor without a real role.
Agree the mandate, duration, readiness criteria and the successor’s role openly at the start, with legal advice on the terms.
Plan the second handover as carefully as the first.

If you are considering this route for your family, you can request a private conversation.