Interim vs fractional logistics support: which model fits your situation?
Interim means temporary ownership: someone takes a logistics role or a critical situation and is accountable for results for a defined period. Fractional means recurring senior support while your internal team keeps ownership. Choose by urgency, who must own decisions, expected duration, internal capability and workload — neither model is better in general.
The core difference: who owns the result
With interim, the decision rights sit with the interim manager for the duration of the assignment. They run the routines, set priorities and carry the KPIs.
With fractional, decision rights stay with your team. The expert works through an agreed recurring capacity — set days, a monthly time budget or a mix of on-site and remote work — and provides structure, reviews, challenge and escalation support.
Decision criteria
- Urgency: a problem that needs daily decisions this week points to interim; a gap in structure that has existed for months points to fractional.
- Ownership: if nobody internally can own the result, interim. If someone can, but needs senior backing, fractional.
- Duration: interim is a defined assignment with handover; fractional runs over months and is reviewed periodically.
- Internal capability: fractional only works if the team can execute between sessions.
- Workload: if the issue needs full-time attention, a few days a month will not close it.
Moving between models
The models are often used in sequence: interim to stabilise and hand over, then fractional to keep the routines in place once a permanent team is running. The reverse also happens when a situation deteriorates and needs daily ownership.
Interim vs fractional at a glance
| Interim | Fractional | |
|---|---|---|
| Ownership | Interim manager owns the result | Internal team keeps ownership |
| Time commitment | Typically higher involvement and stronger operational ownership, often with a significant on-site presence | Agreed recurring capacity |
| Typical trigger | Vacancy, crisis, go-live, ramp-up | Missing senior structure, steady improvement |
| Duration | Defined assignment with handover | Ongoing, reviewed periodically |
| Decision rights | Agreed line authority | Advice and challenge, agreed escalation |
Quick check
- ✓Someone must make daily decisions now → Interim
- ✓The team owns it but lacks senior direction → Fractional
- ✓The root cause is unknown → Start with an assessment
Frequently asked questions
Does fractional support have to be a fixed number of days per month?
No. It can be set days, a recurring monthly capacity or a mix of on-site and remote work.
Can fractional become interim if the situation worsens?
Yes. The scope can be increased to an interim assignment, subject to expert availability.