Six weeks into the engagement, the monthly close was still slipping. The lender deck went out with errors. The board chair had started asking the kind of pointed questions that mean a placement is in trouble. On paper the interim CFO had been a strong choice. Big-4 background, two prior CFO roles, references that checked out. None of it was helping. The PE operating partner who made the hire wanted to know what we look for when we hire an interim CFO, because clearly something in the original screen had missed.
The honest answer is that selecting an interim CFO is a different exercise from selecting a permanent one. The criteria overlap, but the weights are completely different. Most failed interim placements we’ve seen failed not because the person was unqualified, but because the wrong dimension was prioritized in the evaluation.
Here is how we work through it.
Start With What the Next 90 Days Actually Demand
Before evaluating anyone, write down what has to get done in the first 90 days. Not the job description. The actual operational reality. A first close in a new ERP. A debt covenant package due to the lender on the 25th of every month. A budget cycle that starts in six weeks. A failed audit that needs remediation.
This list is the screen. An interim CFO who has run a system implementation but never closed an audit issue is the wrong fit for an audit remediation. Resumes get this wrong constantly because both candidates look qualified on paper.
The question isn’t whether a candidate has been a CFO. It is whether they have done this specific work, recently, under pressure.
Pattern Match on Situation, Not Title
The most reliable signal we have found is whether the candidate has been in a structurally similar situation before. Not the same industry. Not the same revenue band. The same situation.
We placed an interim CFO last fall into a sponsor-backed manufacturer mid-ERP cutover. The candidate had been a Controller, not a CFO, but she had run two prior cutovers as the senior finance person on site. She knew exactly what would break, when, and what the workaround was. She had the role within a week and ran it for nine months.
Pattern matching is more predictive than title matching. A Controller who has done the work three times beats a former CFO who has watched it happen.
An interim CFO is hired to do a known job under time pressure. The right candidate has done that specific job before, recently, and can describe what went wrong the last time.
Test for Operating Cadence, Not Strategy
In a permanent search, strategic capability is heavily weighted. In an interim search, operating cadence matters more. Can this person walk in on day three and run a close meeting? Will they have a board package ready in two weeks? Do they know what a 13-week cash flow looks like and can they build one without a template?
We screen for this in the first conversation. We ask candidates to walk us through the first two weeks of a recent interim engagement. Strong candidates describe specific meetings, specific deliverables, and the people they pulled into the room. Weak candidates describe what they would do or talk in generalities about strategy.
The first two weeks reveal more than any reference call.
Reference Calls That Actually Tell You Something
Most reference calls are useless because they ask the wrong questions. Asking a former board chair whether the candidate was a strong CFO produces nothing. Everyone says yes.
We ask three questions instead. What was the situation when she arrived. What did she do in the first 30 days. Would you hire her again into a different situation, and why or why not.
The third question is the one that matters. A reference who hesitates, or who qualifies the answer with specifics about what kind of situation, is giving you real information. A reference who says “absolutely, into anything” is either being lazy or is not actually familiar with the work.
Reference calls should be sharper for interim hires than for permanent ones. The window to discover a mismatch is smaller.
Have something to share with our community?
The Tradeoffs Worth Naming Up Front
Two tradeoffs come up in almost every interim search.
The first is depth versus availability. The deepest candidates are often booked. The candidate who can start Monday is sometimes the one who couldn’t fill their pipeline. We push clients to wait two extra weeks for the right person more often than we push them to move faster.
The second is industry fit versus situation fit. A candidate from outside the industry who has run the exact situation before will almost always outperform an industry-matched candidate who hasn’t. Industry knowledge can be acquired in 30 days. Situational reps cannot.
What Goes Wrong Most Often
When interim placements fail in the first 60 days, the cause is almost always one of three things. The scope was misdefined at the outset. The board cadence was different than the candidate expected. The internal team didn’t trust the interim and worked around them.
The first is on the firm running the search. The second is on the hiring manager for not setting expectations. The third is on the candidate, and it is the hardest to screen for. We probe it by asking about the toughest Controller or VP Finance the candidate has worked with, and how the relationship developed.
A candidate who can’t name one is not being honest.
Final Thought: When You Hire an Interim CFO, the Next 90 Days Decide It
The mistake we see most often in interim CFO selection is treating it like a permanent search compressed into two weeks. It isn’t. The criteria are different, the references are different, and the screen is built around a specific 90-day operational reality, not a multi-year role profile.
Get the 90-day list right and the rest of the process follows. Get it wrong and even a strong candidate will struggle.
If you’re working through an interim search and trying to figure out whether you have the right finalist, we’re happy to talk through what we’ve seen work and what we’ve seen miss.