#3 Holding on to their Galacticos
Cristiano Ronaldo and Gareth Bale cast doubts over their futures at the club after clinching a third consecutive UCL title. What's more, even Marcelo has warned that he would leave if his best mate Ronaldo decides to do so.
Add the fact that Real are considering cashing in on Karim Benzema. Spanish playmaker Isco, too, is facing an uncertain future at the club.
For the new coach, it is vital that he succeeds in holding on to the stars at the Bernabeu.
Real Madrid might be gearing up for a busy summer after being linked with a host of heavyweights, but losing the old guard won't do any good. Letting them leave will be a big blow for Los Blancos to take on, especially after Zidane's surprise announcement.
How brutal the Madrid faithful can be needs no special introduction. In that case, convincing the players to stay will help the new manager to establish a healthy relationship with the fans and ensure a positive start to his tenure at the club.