#4 Improve the squad mentality and build-up play
The Manchester United manager has criticised his side on numerous occasions through the season, accusing several players of not being up to the task and claiming that "some of them would not make it".
Romelu Lukaku and Nemanja Matic have been singled out for praise, while Anthony Martial, Paul Pogba and Luke Shaw have suffered the brunt of criticism.
Another aspect the Portuguese manager must address is the build-up play. United are often slow and meticulous in their build-up play, taking a long time to create chances. This has been due to a lack of sufficient ball-playing defenders and absence of quality in midfield.
Mourinho has acknowledged he needs to "change the dynamics" of the team during pre-season.