Fractional or interim:
which arrangement fits.

The two compared

The labels are used loosely in the market, and a role advertised as one is frequently the other. The distinction that matters in practice is whether the company needs a persistent part of someone or a temporary whole of them.

When fractional fits

Fractional suits a capability the business genuinely needs, at a volume below a full-time role.

• A company at forty people needing a finance leader’s judgement two days a week rather than a full-time chief financial officer.
• A specialist function, such as security or regulatory affairs, where the expertise is scarce and the workload is steady but light.
• A leadership team with a gap it wants filled well before it can justify the seat, where hiring early and underpaying is the alternative.
• A business testing whether the role is needed at all, where a fractional arrangement answers that faster and more cheaply than a permanent hire would.

When interim fits

Interim suits a full-time job with a visible end, where the point is to close something rather than to hold something open.

• A leader has left suddenly and the permanent search will take four months, during which the function still has to run.
• An integration, a system implementation or a turnaround needs someone senior owning it daily until it lands.
• A business is preparing for a transaction and needs experienced hands through diligence and completion.
• A team is struggling and needs someone in the room every day for two quarters to stabilise it.

The common thread is intensity. Interim work usually requires the person in meetings, on calls and available continuously, which is the part a fractional arrangement handles poorly.

What happens when the choice is wrong

Both misfires are common and both are visible within a month.

Fractional where interim was needed

The person is absent when decisions happen. Work waits for their days, momentum leaks between visits, and the team gradually routes around them. It reads as a performance problem and it is a structural one.

Interim where fractional was needed

The company pays full time for a role with part-time work in it. The person invents projects to fill the week, the cost becomes hard to justify, and the arrangement ends early with both sides disappointed.

We have scoped this wrong ourselves. A client described a gap as a three-month interim cover, and the underlying need was a permanent seat that nobody wanted to approve yet. The interim did well and left, and the same gap reopened eleven weeks later.

A test that settles it

Two questions resolve most cases.

1. Does this end? A need with a visible finish is interim. A need that persists at a lower volume is fractional.
2. Does the work arrive daily? Where decisions, escalations and team management arrive every day, the role wants someone present every day.

Where both answers point the same way the choice is obvious. Where they conflict, the daily question usually wins, because a person who is absent when the work arrives creates a bottleneck regardless of how well scoped the arrangement is.

What each costs, and how to compare them honestly

Day rates on both routes look expensive next to a salary, and the comparison is misleading until the full picture is on the table.

A fractional day rate commonly runs well above the daily equivalent of a salary, and the total still lands lower because the company buys eight days rather than twenty-two. An interim rate sits higher again, because the person carries the risk of gaps between assignments and carries that exposure alone.

The figure that makes either look cheap is the cost of the seat staying empty. A finance function waiting on a leader through a funding round, or an operation waiting on a head through a peak quarter, loses more in a month than the rate difference costs in a year.

Getting either one productive quickly

The argument for both arrangements is speed, and most of that advantage is lost in the first fortnight when nobody has decided how the person plugs in.

1. Name the sponsor. One person the arrangement reports to, who owns the decision to extend or end it. Where that is left to the executive team collectively, it is owned by nobody.
2. Introduce the authority, publicly. The team needs to hear what this person decides, from the person they already report to. Absent that, they route around the newcomer out of caution rather than resistance.
3. Agree the first thirty days in writing. Two or three outcomes rather than a list of meetings. It gives the review point something to measure, and it surfaces early where the sponsor and the executive disagree about what the job actually is.
4. Settle the tooling on day one. An executive waiting a fortnight for system access has burned a quarter of a three-month assignment on administration.

We have watched this go wrong more often than the hiring decision itself. A well-chosen interim with an unclear mandate performs worse than an average one with a sharp brief, and the company usually concludes it picked the wrong person.

Structuring either one

Whichever route is chosen, four things settled in writing at the start prevent most of what goes wrong later.

• Days, and which ones. Regular days beat an equivalent number taken ad hoc, because the person can hold a standing place in the rhythm.
• Decision rights. What they sign off alone and what escalates. An executive lacking authority is an expensive adviser.
• Term and review. A fixed initial period with a review point, and notice on both sides.
• The exit. Whether the role converts to permanent, and whether this person is a candidate for it.

Marquee runs permanent, fractional and interim mandates through the same evaluation. What changes between them is the length of the term and where the contract sits, rather than the standard a candidate is held to.