If you look at his record, it's pretty damn impressive.
He took them from the 3rd tier in French football (as Champions), then won the 2nd tier (As Champions, without losing a home game all season), to Ligue 1 (the top flight).
In 2012/13 they finished 12th, and this season they finished 10th.
He was hired in December 2004 by the team of Le Mans , while the team is in Ligue 2 . This is a coach known for his unusual methods, such as jogging at 6am, speeches in the dark, the choreography for the fans ...