Assuming you meant 4 3 3 I'm not convinced we have the forward players to make that work.
If we had 2 players smilar to Mirallas (or Eto'o a few years ago, when he was more mobile) it might, but with the players we have I just see it getting very congested in the middle.
Other thing with that system is we are basically hoping that Baines & Coleman play the whole season, which is unlikely in this day and age.