Pienaar and Mirallas are smart enough footballers to interchange as they see fit. Each can do a job left, right, and central.
Fellaini (if he stays) would have to drop deeper if Roberto plays his funky 3-4-3. Fellaini and Gibson certainly isn't the worst pairing, but I don't know if it is ideal.
Honestly, I obviously have no clue whether Martinez wants to force a new formation on everybody, but it might be fun to watch Coleman and Baines in a 3-4-3.
Sorry mate, but Gibson and Fellaini is well and truly my ideal paring








