How to transform a plant using Theory of Constraints

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How to transform a plant using Theory of Constraints

Ludovic Hagneré, Production Manager at Safran Electronics & Defense, will present the implementation of TOC and the results achieved. The factory was used to late deliveries but increased its On-Time delivery to 75%. Theory Of Constraints allowed to diminish the Work-in-Progress by more than 75% and reduced the Lead-Time from 9 months to 2,5 months. The productivity of the bottleneck surged by 45%!

Guillaume Brethenoux, Maintenance Manager, will present the project of layout reorganisation he led in the machining area. He managed this project using the Critical Chain Project Management methodology. So, he will explain how a project initially planned to last 5 weeks was done in 6,5 days.


Bio - Guillaume Brethenoux

Guillaume Brethenoux, graduate of the engineering school INSA Rouen, has been Industrial Maintenance and General Services Manager for 4 years at the Safran Electronics & Defense plant in Mantes-la-Jolie.
Prior to joining Safran, he held several positions of Workshop Maintenance Manager in Renault Group and PSA.

He was the pilot of the project of  re-organization of the mechanical workshopof Mantes-la-Jolie factory, a project planned and executed  with the Critical Chain approach.

Guillaume Brethenoux

Bio - Ludovic Hagneré


Holder of a degree in Quality Management from the IUT of Poitiers, Ludovic Hagneré held the positions of Quality Manager at the Goodrich and Mecachrome factories, before joining the Safran group.

At Safran, he moved to production management, and for nearly four years, he has been Production Manager at the Safran Electronics & Defense factory in Mantes-la-Jolie.

He was the project manager of the implementation of the Theory of Constraints within the plant.


Ludovic Hagnere

About Marris Consulting

Marris Consulting is an industry consulting and training company specialized in the Theory of Constraints (ToC) and Critical Chain Project Management. We focus on improving the performance of manufacturing and process industries by using Constraints Management combined with Lean and Six Sigma. To boost project performance, we also use Critical Chain Project Management (CCPM), which we sometimes combine with Lean Engineering. Our 2-day performance audits, our performance consulting services and our project management, Lean, ToC & CCPM training by our industry consultants offer a wide range of solutions to help our clients around the world reach the highest possible levels of performance.

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