Cesc could have
gone back to Arsenal after leaving Barca but Wenger did not buy him back when he had him in a silver platter... there is a greater need for
Cesc now with Santi, Jack and Rosicky out / poor form / retired than back then but Wenger should never have allowed this transfer to happen for simply NOT letting Chelsea get stronger, we had enough room in the squad roster back then anyway and he could have sent Jack on loan that
season and common sense also said Rosicky was almost
at the
end of his career so
Cesc would have played a lot anyway.