No doubt he's a great coach, but his record with transfers is patchy at best - Morata, Bakayoko, Drinkwater, Batshuayi, Luiz and Barkley were some of his big Chelsea signings, and all flopped. Only Kante, maybe The Boy Who Cried Racist, really went on to excel.
You think the head coach at Chelsea chooses/buys the players?