Yes, but I think one season lesson is enough. Sunlight position, how to defend your head using shoulder when rushing to grab the ball, etc. Every time I see Courtois this season, he seems looks 'unease' because Cech is behind him all the time and the pressure is there. Yes, for other players it should motivate him more, but I feel Courtois not that kind of person. The way he want first choice guarantee, urged Mignolet to stay quiet and respect him, and else, makes me think he will be better player if he is feeling 'safe'. Just like at Atletico days.