it is interesting so far.. but lets not get ahead of ourselves ... so far we sold Saviola and Codina ..
no one knows who will stay or who will go..
Pellegerini switched between 4-4-2 as u mentioned and 4-2-3-1(vs Real and Barca ) this season with Roman R he played with 4-4-2 diamond shape midfield ...
i seriously don't know ... maybe he will use Kaka as a fake LM l(ike we used to do with Zidane and Carlos) allowing Marcelo to bomb forward while the other 3 defenders cover him
the forwards i think will be Benzema - Higuain and a no 9 (huntelaar or Negredo ) .. Raul will be benched as announced so many times over the last 4 weeks ..
we need to wait till the pre-season start and the final squad is at least shaping up