Well, I always have 4 MCs in the squad. 3-4 seasons ago I had 3 of them injured at the same time so I had to play 4-1-2W-3 formation (8 games, and I didn't have MR/MLs to play 4-3W-3). I won 6 games and lost 1, and my only MC had better ratings playing alone in the midfield than playing with one or two more MCs...