#4 Will receive a more central role

At Chelsea, Morata will be chosen to play in a more central role, something which he couldn't do at Real Madrid. Karim Benzema was preferred more by Zidane despite Morata being more effective. At Real, most of the time Morata came onto the pitch, he had to support Cristiano Ronaldo to score goals and was never considered the main goal scorer of the team.
This will probably not be the case at Chelsea. With the departure of Diego Costa, Morata will be used as the main threat for attack and will be considered central to the team which will allow him to produce goals. All attacks will be focused on him and he will be the primary centre-forward in the team. Furthermore, the only competition he will receive is from the young Michy Batshuayi who will mostly be used as a backup.
All this will allow him to prosper because of the importance and responsibility he will receive at Chelsea. In all probability, he will also be appointed as the main penalty-taker for the team. Something he could have never even imagined at Real because of the presence of Cristiano Ronaldo.