I don't really like Adu out on the wing in a 4-3-3. It isolates him too much, while to fully utilize his best attributes I think he needs to be more free to move left-to-right to find the ball and catch defenders off-guard. His best US performance was as the second striker under Altidore in Rongen's 4-2-3-1/4-3-3 hybrid at the U20 World Cup. Two true wingers and two good CMs around him, and Jozy up top to combine with. That having been said, he had a fine game vs El Salvador, even as a right winger, and nearly carried the team into the semi-final on his back. But his righ-footed crosses were pretty mediocre and he dissappeared at times. Much better cutting inside to his left foot, but he can't do that all the time, either. For the foreseeable future with the US, I think Adu should be Dempsey's backup as the second striker in a 4-4-1-1.