Maybe Ozil just isn't as good as everyone thinks anymore and has regressed. Sure he was an absolute prodigy at Schalke and Werder Bremen.
But since the move from Bremen he built a reputation based on playing among the likes of Alonso, Ronaldo, Benzema, Muller etc and the best national team in the world (for which he is usually doesn't standout for anymore). Peter Crouch or someone like that could look like a world beater in that company.
As soon as he hit a half season in at Arsenal and had to play teams better then Sunderland he hasn't performed.
Would David Silva, Aguero even a lazy fucker like Toure keep playing quality and still be considering arguably the best player in the league if they went to Arsenal or say even West Ham? I would go with Yes. Ozil hasn't ever given me that impression and a player as hyped as him should.
At this point I am not convinced that if you bring in a forward that supposedly suits him for example Lacazette, Ozil then suddenly shows he is world class or won't go missing in games.
He isn't better then Cazorla, I'd make a case he isn't even as good as Ramsey anymore as far as Arsenal midfielders go.