@ Pitbull: Why do we have to play 4-4-2? The fact that we acquired Diego clearly indicates that we will not be deploying your preferred 4-4-2 formation! Why splash 25 million pounds on a player, and then play him out of position?
Thus, this renders your argument as meaningless and without solid foundation. Therefore, with the new system that we shall deploy (be it 4-3-1-2, 4-2-3-1, or 4-3-2-1) We need to focus on other areas, as there is no need for a left winger.
Case Closed!