Thought it was a bit of an odd deal from the outset as he primarily (if not totally) played on the wing for le Arse. We're well covered on the flanks.
But by all accounts he played more central for Villareal, so if he takes up the Petrov role re sitting deep and keeping things ticking over with accurate distribution it possibly makes a bit more sense.
He never really struck me as that type of player before, I must admit. But good attacking midfielders do on occasion move further back towards the twilight of their careers. If he's smart enough to play the role -even for just the last 15-30 minutes of a match from the bench -it could be worth it.