Insights

8 Reasons to Use an Interim Manager

Eight reasons to bring one in, where interims are used, and how a good assignment actually runs end to end - not just the parts that make the CV.

Graham D. Rae  |  First published on LinkedIn, 17 July 2020. Refreshed September 2026.

A dictionary entry for the word interim, defined as provisional or meanwhile.
Graham D. Rae Associates

(All you wanted to know about Interim Managers but were afraid to ask!)

Does your organisation need experienced leadership for a period of change, transition or recovery?

Perhaps you need to:

You may not need another permanent appointment. You may need an Interim Manager.

Hiring the right permanent manager can take months. An experienced interim can often be available within days, providing the organisation with immediate capability while it addresses the underlying challenge or recruits a permanent successor.

Yes, interims are expected to hit the ground running.

Cliché alert over.

What is an Interim Manager?

An Interim Manager provides experienced management capability for a defined period and purpose.

They are commonly appointed to manage transition, transformation, recovery, crisis or an unexpected leadership gap. The organisation may not require a permanent appointment, or its internal teams may not have the necessary experience, capacity or independence.

Professional interims often operate at board, executive or senior programme level. They bring experience gained from comparable assignments across different organisations, sectors and situations.

They should not be there merely to advise, observe or make up the numbers.

A genuine Interim Manager takes responsibility, makes decisions, leads people and delivers an agreed outcome.

1. Speed

An Interim Manager can usually be appointed more quickly than a permanent executive. When a programme is drifting, a leadership position is unexpectedly vacant or a business-critical deadline is approaching, waiting several months may not be a realistic option.

2. Relevant experience

An interim is appointed for experience that matches the situation. They should have evidence of delivering comparable programmes, resolving similar problems or leading organisations through similar periods of change.

You are not paying them to learn how to do the job. Relevant experience also means knowing when to challenge the old way of working, rather than bashing a new system until it resembles the old one.

3. An independent viewpoint

People inside an organisation can become accustomed to how things have always been done. An interim can examine the evidence, challenge established assumptions and ask the awkward questions without being constrained by internal loyalties, departmental boundaries or a long-term career agenda.

Sometimes a fresh pair of eyes is exactly what is required. Preferably attached to someone prepared to say what they see.

4. Accountability for delivery

An Interim Manager is not simply an adviser who produces a report and departs before implementation begins. They take responsibility for turning analysis into action: establishing the true position, agreeing priorities, managing risks and suppliers, leading the team and delivering the required change.

Advice can be useful. Delivery is what produces the outcome.

As I explored in A Task List Is Not a Plan, visible activity is not the same as controlled delivery. A genuine Interim Manager does not simply advise. They take responsibility and deliver the agreed outcome.

5. Focus

An interim is brought in for a specific reason. Their attention should remain on the agreed objectives, outcomes and timescale rather than becoming absorbed by organisational routines or competing ambitions.

That focus can create momentum where progress has slowed or stopped.

6. Flexibility

The organisation gains experienced leadership for the period in which it is needed. The assignment may last several weeks, several months or longer, depending on its scope. It can also be divided into phases as the organisation moves from diagnosis through delivery to handover.

The purpose is not to make the arrangement indefinite.

7. Knowledge and capability transfer

A good interim should not create dependency. They should develop the internal team, establish practical controls, document important decisions and transfer the knowledge required for the organisation to continue successfully.

The assignment has delivered more value if the organisation is stronger after the interim has left.

8. A planned exit

An interim assignment should have a defined outcome and an eventual conclusion. That may involve handing responsibility to a permanent successor, returning ownership to the operational team or confirming that the change has become sustainable business as usual.

Success includes making the interim unnecessary.

Where are Interim Managers used?

Interim Managers work across finance, procurement, technology, HR, operations, customer service, marketing, manufacturing and many other business areas.

Assignments commonly include:

The common factor is a defined business need requiring experience, authority and action. You can see examples of how that has worked across ERP, CRM, programme recovery and operational handover in the case studies.

How does an interim assignment work?

Although every assignment is different, it usually runs through five stages.

1. Engagement

Define the problem, scope, authority, expected outcomes and commercial arrangement.

2. Diagnosis

Establish the evidence-based position, including the principal risks, issues, dependencies and constraints. Diagnosis comes before methodology - the problem needs to be understood before the framework is chosen.

3. Mobilisation

Agree priorities, ownership, governance, measures and a practical delivery plan.

4. Delivery

Lead the work, manage decisions, suppliers, teams and organisational change, and maintain focus on the required outcomes.

5. Handover

Transfer knowledge and responsibility to the permanent successor or business-as-usual owner. Confirm what has been delivered, what remains outstanding and who owns the next actions.

The scope, deliverables and responsibilities should be agreed at the outset, usually through a contract and statement of work. The engagement model, insurance requirements and employment-status considerations should also be clear before the assignment begins.

What about fractional leadership?

Fractional leadership can overlap with interim management, but they are not the same model.

A fractional leader typically provides continuing senior expertise for part of each week or month. An Interim Manager is more commonly appointed to take responsibility for a defined period of change, recovery, transition or temporary leadership.

The important questions are not simply what the role is called. What outcome is required? How much authority is needed? Is the requirement temporary or continuing? Who will be accountable for delivery?

Is an Interim Manager the same as a consultant or contractor?

The boundaries can overlap, particularly in senior roles.

A consultant will often provide specialist analysis, advice or defined deliverables. A contractor may provide particular skills or services. An Interim Manager usually becomes part of the leadership or delivery structure and accepts responsibility for achieving an agreed business outcome.

It is a hands-on, make-it-happen role. The label matters less than clarity about authority, accountability and expected results.

Where can you find an Interim Manager?

Interim management is not simply temporary employment with a more expensive label. Used properly, it gives an organisation rapid access to experienced, independent leadership with a defined purpose and a planned exit.

The starting question is not: do we need another person? It is: what outcome do we need, how quickly do we need it, and who has the experience and authority to make it happen?

The central distinction remains accountability. An Interim Manager does not simply advise. They take responsibility and deliver.

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