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Why six months is the typical format for a site management in transition

French industry is walking on a tightrope. According to INSEE, manufacturing production fell by 1.0% in May 2026, even though industry as a whole is still growing by 2.4% year-on-year. In this context, a site without management for several months is taking a real risk: drift in indicators, social tensions, loss of customers.

However, the recruitment of a site manager on a permanent contract often takes six to nine months, between hunting, interviews and notice. Some sites are experiencing a number of difficulties: unattractive location, demanding environment, shift schedules. The transition mission covers exactly this air gap, with a start that is out of all proportion to the usual deadlines: a European survey from spring 2025 notes that for the majority of companies, only one month separates the brief from the launch of the mission.

It is no coincidence that the France Transition barometer measures an average mission duration of 7.5 months. Six months of effective management, plus the time it takes to pass on to the long-term manager: the count is almost always there.

The profile to be required to manage a production site

Not all interim managers know how to run a factory. The position requires a rare mix of legitimacy in the field, budgetary rigour and a sense of teamwork.

A production experience that can be seen from the first round of the workshop

The right person has already managed sites comparable to yours: workforce size, shift work, quality requirements, unionization. He knows the rituals of a factory, knows how to read an OEE (overall equipment effectiveness, the flagship indicator of machine performance) and is accepted by the teams in a few days because he speaks their language. Fifteen to twenty-five years of operational experience is the norm for serious interim managers.

Knowledge of Lyon’s industrial fabric, an accelerator

With a GDP of €329 billion, Auvergne-Rhône-Alpes remains France’s second-largest economic region. Chemicals south of Lyon, mechanics and bar turning in the valleys, plastics processing in Oyonnax, pharma and life sciences: each area has its own jobs and networks. A manager who knows them saves time on local recruitment, subcontractors and social relations. Our article on interim management in industry details these sectoral specificities.

The course of a six-month mission, week by week

A successful mission follows a proven pattern. Here it is, just as we fly it.

Weeks 1 and 2: Secure and diagnose

The manager arrives with a validated roadmap between the general management and the firm. His first days are used to secure the essentials: personal safety, production continuity, customer deadlines. At the same time, he establishes a factual diagnosis of the site, the teams and the indicators.

Months 1 to 4: Pilot and progress

Then comes the heart of the mission: animation of production rituals, budget management of the perimeter, monitoring of indicators, treatment of hot topics (maintenance, quality, absenteeism). An interim manager does not act as an extra while waiting for the incumbent. He moves the site forward, often based on a continuous improvement approach that will leave lasting gains.

Months 5 and 6: Transmit

The final stretch: documenting, consolidating and passing the baton to the director recruited on a permanent contract. A structured transmission (files, indicators, points of attention, tour of the teams) prevents the successor from starting from scratch. It is a deliverable of the mission, not an option.

Two real missions to an industrial site

Two recent examples, anonymous, illustrate what this type of mission covers.

In the metallurgy sector, a group specialising in stainless steel saw the director of one of its sites called to other functions, while the recruitment of his successor was expected to take a long time due to the location of the site. An interim manager took over the operational management of this plant of about 400 employees working in 5×8 shifts, coordinated its four autonomous production units and maintained performance throughout the search for the future director.

In the automotive sector, an international equipment manufacturer entrusted an interim manager with the production and maintenance perimeter of a French site with 650 employees manufacturing electric power steering systems. As a member of the management committee, he managed the teams, kept the scope budget and led improvement initiatives until the incumbent took up his position. Other examples are detailed in our plant manager transition missions.

Find a transition site manager in Lyon with WAYDEN

WAYDEN relies on a pool of 8,000 qualified managers, including many plant managers and industrial managers experienced in demanding environments: agri-food, chemical, mechanical, pharmaceutical. The profiles presented have 15 to 25 years of operational experience and can start in less than a week.

Each mission is supervised by an associate director of the firm, with objectives set from the scoping stage and regular progress reports until the handover. The complete regional offer is presented on our interim management page in Lyon, and all of our expertise on wayden.fr.

FAQ

When is the right time to initiate a transition mission to a site?

As soon as the vacancy is certain, without waiting for the actual departure. The best assignments start with a tuilage between the outgoing director and the interim manager, even if it is short. Each week saved upstream reduces the operational and social risk.

Can the interim manager then be recruited on a permanent contract?

This is possible but rare: less than one in ten assignments ends with the hiring of the manager, with most interim managers making the long-term choice of this mode of practice. The mission aims first and foremost to secure the site and prepare for the arrival of the incumbent.

How does the interim manager fit into the teams in place?

In the field. The first few days are spent in the workshops, not in the meeting room: around the shifted teams, listening to the local management, reviewing the concrete irritants. Legitimacy comes from the manager’s industrial experience and his daily presence, not from his title.

What happens if the assignment has to be extended beyond six months?

This is common when the recruitment of the incumbent is delayed. The extension is decided by mutual agreement, by amendment, with updated objectives. The firm must guarantee the continuity of the same manager until the effective transfer.

Conclusion

Six well-managed months is better than a year of vacation. With the right profile, a mission to a production site secures performance, calms the social climate and prepares the arrival of the long-term manager in good conditions.

Does your production site need a pilot quickly? Contact WAYDEN to receive profiles of experienced site managers available in the Lyon region within a few days.

Sources

INSEE, “In May 2026, manufacturing production fell by 1.0%”, Rapid Information n° 166, published on 3 July 2026: manufacturing production at -1.0% in May 2026, total industry at +2.4% year-on-year.
INSEE, Insee Flash Auvergne-Rhône-Alpes n° 157, published on 26 August 2025: regional GDP of €329 billion in 2023, France’s second largest economic region.
France Transition, barometer for the second half of 2025, press release relayed in February 2026: average duration of the assignment of 7.5 months, hiring rate of the manager after assignment less than 10%.
TPE Actu, “Companies and the use of interim management”, published on 8 May 2025: for 59% of companies, a month passes between the brief and the launch of an assignment.

Interim manager for a production site in Lyon: the course of a six-month mission