Moyes' systems and philosophy to date have been based around kick and rush. High energy, high octane and very classically British. He's often resorted to playing a long ball game and getting runners off of a target man. Think he knows he can't get away with that at Utd, but I've seen no sign that he's able to really evolve.
All very well saying 'creative player here, direct player there', but that's just names on a team sheet unless you can devise a system and a way of playing that gets the best out of those players.
He looks utterly confused with how to marry his ideas with superior footballerers to me. Either that or he's unable to get his message across to the players.