While Mourinho pushed Los Blancos back amongst the world's elite, his massive ego and questionable player tactics ultimately led to his demise. Madrid do not need to start over—the club can continue building on the progress made over the past three seasons.
Ancelotti should be a welcomed figure on the touchline this year. Here is a man who has managed the biggest clubs—and egos—on the planet, with a consistent track record of success.
From his Champions League triumphs with Milan to ushering in a new era with PSG last season, the Italian manager's credentials offer much evidence to his success.
But first-year success is rare, and the pressures of the Bernabeu have proven to be unbearable for many. The addition of new talent will give Ancelotti the tools he needs to accomplish the club's goals, but he will have to overcome several obstacles to do so.
Here are five big challenges he will face.