Formation is one thing but the roles will be more important.
I mean Yaya will have to stop the walking and not running back when he doesnt want. Can see some problems there...
Also keep running and working for the team even if you are a creative attacking player like Silva, Nasri...
Read that in Pellegrini's Villarreal how important and big discipline was needed that central midfielders always moving out to the sides when the fullback went ahead for attacks.
We need to be lot more disciplined as a team because in CL they punish every small mistakes like this even Ajax showed it...
As formation I hope it is a two striker one, with one closer to the box arriving for crosses and the other (Agüero) in a little bit of a free role around the box, little bit more space for using his pace...
My big hope is pace, that we will play with pace, we turn from defence to attack very fast (like Dortmund), and Hart not keeping the ball slowing down everything then makes a horrible kick back to the opponent but when he saves he makes a good throw for a running player and we make a nice and fast counter with players like Navas, Agüero, Yaya bursting forward. That would rip PL teams apart and thats what we didnt do at all last season most of the matches.
Pellegrini said we wont sit back after scoring a goal, thats good, as most of the time it is punished when we sit back (as we rarely countered even if opponent started to attack.)