Formation will be (rightly, to some extent) blamed, but you can't really look beyond the players. Haven't seen Carrick this poor in ages and we had the pub-version of Rooney playing today. In the first half we got in decent positions, but Di Maria wasted a lot of them and our other players handled the rest. Mata got three decent chances in the second half and you'd expect him to score from at least one of them. Just a poor performance by pretty much every player today, and not just because of their roles and the formation - a lot of it was just simply failing at football.