Brest's performances in this season's Champions League are almost as astounding - particularly as the squad was arguably weakened over the summer rather than strengthened. A financially prudent approach to player recruitment has been one of the key elements to Le Saint's presidency, with the emphasis very much on bargain buys, be they undervalued veterans with something still to offer or young players of real potential hiding in the lower leagues. Nonetheless, it was saddening to see a club that had just qualified for the Champions League lose a number of players that had played significant parts in the feat, including Lilian Brassier, Steve Mounie and Jeremy Le Douaron.
Furthermore, only €10 million (£8m/$11m) was spent on transfer fees for new players, with Brest still having to rely on the loan market and free agency to boost their numbers, while they have also been forced to play their European home games at Guingamp's Stade de Roudourou, which is more than 100 kilometres away, because the Stade Francis-Le Ble doesn't meet UEFA regulations.
Despite all of their disadvantages, Brest somehow find themselves fourth in the Champions League standings going into matchday five, having won three games so far (against Sturm Graz, Red Bull Salzburg and Sparta Prague), and drawn their other, against Xabi Alonso's Bayer Leverkusen.
Humility and hard work have been key, with Roy rightly proud of the fact that there are no egos in his dressing room. "Everyone fights for one another," he said. "We have a strong collective identity - which is the hardest thing to create [at a club]."
It also makes them a problem to play against. While the players demonstrate impressive discipline and organisation within Roy's 4-3-3 formation, veteran midfielder Jonas Martin acknowledges that they're "a bunch of madmen".
"We are all a little crazy on the pitch... because we are competitors, we hate defeat," he told L'Equipe. "We have [successfully] managed to combine work, intensity and character, plus the talent of some, and there is a good chemistry between the young players and the older guys. The coach often says that we are pirates - and we show it on the field."