I think that one of the things that frustrated Barca the most on wednseday is that we, for most of the game, tried to contain them and force them to make side passes instead of crowding the player in possession. The latter kind of pressure is what barca want teams to play against them since it leaves spaces on the far side of the defense and since they thrive on playing passes in tight areas. This is why I believe that we won't mind too much if they choose to play more on the wings, in fact that is where we should try to force them, imo.