Really don't see Arda or Echeverri having that much higher ceilling. Ofc if everyone of them reach their full potential then their value will probably be higher because offensive players are usually rated higher.
Anyway, he looks to have second thoughts about joining us because of Xavi leaving. Makes sense as he doesn't know who the next coach will be. But Deco apparently did his best to convince him he's a strategic signing and will have his role in club's future regardless of who is on the bench so he's still favoring Barca but might take some more time than expected to officially sign.
Just when I've thought we finally made a signing without too much drama, lol.