I remember Wenger saying that after he said he didn't want Cesc because we had Ozil, and implied that after than he ended where he wanted. I don't really think Cesc is the most righteous person but given how concerned he is with his image, he would have loved to come back to a mostly adulating crowd. 'Wouldn't believe anything coming out of Mourinho's mouth.
In any case, if we were going to play 4-1-4-1 and not upgrade on the CF, then why not pay the money to get him, that's what does my nut in.