What Real needs is a young striker. Karim is old, and getting another old striker in Cavani is not really a good thing. Now, if they can get someone in the likes of Dybala, Pulisic or Draxler, they can move Ronaldo to the striker position and either Pulisic or Draxler takes the wing. If they opt for Dybala, then he can be the perfect receiver for those passes.