You could move the two wingers back a slot so the midfields compact, i mean the team your putting out is very good, so its not the squad lol, also if you watch the game, put commands in like hassle opponents, and get stuck in.........change attacking to standard, keeps the team balanced, if you knick a goal switch to counter, and if your in trouble go to attacking, change carricks deep lying playermaker (support) to (defend)
Play 4-5-1 on away games, match up in the middle have a deep lying playmaker(carrick) on defend or ball winning on defend(hargreaves), a box to box (fletcher) and considering your united play park ji sung as an advanced playmaker, but sometimes you could have him as a box to box, and fletcher as a ball winning, but have the 2 wingers in that Attacking midfield slot on the wings, AMR and AML and Rooney up front on his own as the advanced foward i think, thats how i play against the big teams and succeed
never play 4-4-2 away from home against a big side, leaves my midfield short
hope i helped