We guarantee the swift intervention of an expert to lead a strategic project, manage a transformation, or navigate a complex situation, without going through a traditional recruitment process. Our clear objective: measurable results, immediate integration into your teams, and a seamless fit with your company culture.

Why choose Mushroom?

Responsiveness: First candidates within 48 hours
Targeted expertise: Experienced and adaptable profiles
Structured and personalized support throughout the entire mission

Processus

Diagnosis & Definition of Needs

We start each assignment with a thorough assessment of your situation to clearly understand your challenges, objectives, and the required skills. This step helps define the scope of the mission and identify the key action levers.

Search & Selection of Suitable Profiles

Thanks to our qualified network, we present the first profiles matching your needs within 48 hours. Our interim managers are experienced, immediately operational, and able to adapt to various sectors and transformation contexts.

Mission Kick-off & Rapid Integration

Once the profile is approved, the manager quickly joins your team. We ensure a smooth and efficient onboarding, with clear objectives from the very start.

Ongoing Monitoring, KPIs & Adjustments

Throughout the mission, we provide personalized follow-up with regular check-ins and shared performance indicators (KPIs). This allows us to track progress, make adjustments if needed, and ensure the quality of deliverables.

Transition & Knowledge Transfer

At the end of the mission, we actively prepare the manager’s departure with a structured transition plan. Skills and know-how are transferred to ensure lasting impact and continuity for your teams.

FAQ

What is interim management?

Interim management involves bringing in an experienced external manager to temporarily lead a strategic assignment within a company. This manager typically steps in for a period of 3 to 12 months, often in contexts of transformation, crisis, or rapid growth.

An interim manager is operational from day one. They don’t come to observe, but to act quickly and effectively. They may take on an executive role (CEO, CFO, CHRO, CTO…) or a more technical position (plant management, logistics, IT project management, etc.).

When to use interim management?

Urgent replacement (unexpected departure of an executive)
Reputation crisis or sensitive internal/external communication
Merger, restructuring, or governance change support
Brand repositioning or identity overhaul
Departure or extended absence of the Communications Director
Strategic product launch or offer to manage
Marketing department reorganization or team changes
Rapid growth or need for structural scaling
Temporary replacement of a CMO / Head of Marketing
Digital transformation / implementation of new tools or digital organization
Oversight of a website, CRM, or marketing information system redesign
Implementation of a digital or data marketing roadmap
Supervision of product/tech teams while awaiting recruitment
Launch of a strategic project (new business unit, site, or tool)
Business handover or sale
Change management (new managerial culture, reorganization)

What does interim management bring?

Immediately deployable experience
An external, neutral, and results-driven perspective
Contractual flexibility (clear mission, defined duration, no long-term commitment)
Acceleration effect: the manager moves quickly, with method and impact

Who takes on the role?

In interim management, the person involved is an expert capable of taking charge quickly and delivering impact from the very first days.

Here are the key characteristics of these profiles:

An expert, not a consultant

Often comes from executive roles (Communications Director, Marketing Director, Sales Director, Digital Director, CEO, HR Director, COO, CTO…)
Experienced in managing complex situations: rapid growth, restructuring, crisis, merger…
Both strategic and operational: makes decisions, mobilizes teams, delivers results

Used to short-term assignments

Understands the pace and demands of interim roles: efficiency, measurable outcomes, smooth handover
Often already a freelancer or independent professional with several missions under their belt

How long does a mission last?

Typical durations observed:

3 to 6 months: for urgent replacements, short-term projects, or crisis situations
6 to 9 months: to lead change or structure a new organization
9 to 12 months (or more): to support a deep transformation or a phase of rapid growth

The duration is always defined from the start but can be adjusted if objectives evolve. What matters most is that the mission has a clear beginning, a defined framework, and a purposeful end.

What’s the difference between an interim manager and a freelancer?

While both are external to the company, an interim manager and a freelancer have very different roles, levels of involvement, and objectives.

Mission Objective

Interim Manager: temporarily takes on responsibility for a strategic or executive role (e.g. CFO, HR Director, COO), with team leadership, operational oversight, and transformation goals.
Freelancer: provides specific technical or functional expertise, usually without a managerial role, focused on execution or production tasks.

Level of Involvement

Interim Manager:
- Operates at a strategic level
- Makes decisions, leads, arbitrates
- Reports directly to top management or the board
Freelancer:
- Supports operational or technical needs
- Follows a defined roadmap
- Typically does not manage teams (except in specific cases)

Duration & Commitment

Interim Manager:
- Structured mission, typically 3 to 12 months
- Clear objectives, often measured by KPIs
- Accountable for outcomes
Freelancer:
- May work part-time or on short-term assignments
- More flexible, but less integrated into company governance
- Objectives usually limited to a specific scope