#3 Ageing players

The team that has won four Champions League in 5 years, or at least its core, is ageing now. Modric is 33. Marcelo is 31. Ramos is 32. Ronaldo was 33. Benzema is 30.
Bale is 28, however, as is Kroos. But both are at their peak, and will only be there for a few years to come. Is this part of the reason for their struggles? Is there an inevitable dip to come, as the Whites look to rebuild?
It's possible.

However, if this is the case, maybe this dip would be more painful, considering a new of top players are coming towards the end of their illustrious careers.
Modric won Best Player Award of course, and it's essentially an-all star team as it stands.
All empires rise and fall, and maybe we're coming to the natural end of the current great Real Madrid team.