Who is more important to Real Madrid, though? The manager, who has yet to spend more than three seasons with the club, or the player, who has won everything in a previous environment and would like to do so again?
Cristiano Ronaldo is more important to Real Madrid because of his performances on the pitch and how he can help the club.
Mourinho has been in charge for the club's two successes in Spain during the Pep Guardiola era; a feat which doesn't go unnoticed, but Ronaldo still takes center stage.
For all the tactical decisions Jose Mourinho makes, Real Madrid doesn't win games until goals are scored, and they are normally scored by Cristiano Ronaldo.
It was his goal that won the team the Copa del Rey in 2010-11, and his goals, especially the game-winner against Barcelona late in the season, that won the team the league title in 2011-12.
Ronaldo has brought much more than just goals and titles for the clubs, though. One can be sure that fans are constantly buying tickets to see the Portuguese player and not the Portuguese manager.
In 2010, Goal.com reported that the club had sold over €100 million worth of Cristiano Ronaldo shirts. He hadn't even been at the club for a whole year at that point. That number has certainly grown since then and it shows just how much Ronaldo has already done for the club.
In terms of longevity, Ronaldo still seems to have the upper hand. Given his track record, Jose Mourinho may not stick around for too long, but Ronaldo has spoken about wanting to retire at the club in the past.
While both men may cost the club a hefty fee for their daily work, Ronaldo is the one that pays it back, with interest.
Sure, Mourinho guided the team to two titles, but we have already seen how important Ronaldo was in both those instances. Could Madrid have won without Ronaldo in each instance? No. Could they have won without Mourinho? Possibly.
Ronaldo's impact on and off the pitch makes him more important to the club.