I don't understand the hatred people have for Christophe Lollichon. It is reported that Christophe Lollichon first scouted Mendy when he was still at Reims, yet people praise Cech for getting him.
Don't you mean, how big a problem Kepa was after Frank destroyed his confidence. Chelsea had no no issue getting 3rd and winning the Europa League with Kepa in goal. Change manager and suddenly he is the worst goalkeeper in Premier League history.