I'd say Oscar has been Chelsea's best player so far, so there is that. As for Ramires, he broke into the Brazil NT as a right winger, and he is definitely a good player there. He is also better from a defensive POV in that position compared to Mata by a street. As for Schurrle, I don't think it is very productive or fair to totally disregard what he did in Germany. He managed to get himself into an excellent German NT squad as a wing forward.
Imo, I think Hazard, Oscar and Mata together offer the same weakness as we currently see at Arsenal without Walcott; there are too many players in attacking positions who want the ball to feet, and not enough players looking to get in behind the back 4.
Bored with this now. Suffice to say that I am extremely happy as long as Maureen continues to look for a combination that will do the job he wants them to do. Despite all this - they are not very far behind us, so long may it last.