I just don't see Navas as being an upgrade to Bravo.... Navas might be a little better with making acrobatic saves but he is worse with his feet. Remember Bravo looked excellent in la liga too. If we are going to upgrade in the GK department, than we should try to get one of the worlds best... but that seems unlikely so we should go get someone young with potential to be one of the worlds best and have the young GK challenge bravo for playing time or split playing time with Bravo. Like Barca did with ter Stegan and Bravo.