Lassana Diarra - not good enough for Chelsea or Real, therefore not good enough for United.
Diarra is significantly better as a player than anything you've got in that position. It's just his attitude that is problematic.
Yeah, we don't really have a pure DM.
Sneijder is good, but I feel that he is best suited to a position that is similar to where Rooney has played. If SAF thinks Sneijder can do a job in a deeper position then that is great.
I do like the idea of a player like Nasri, he can play just about anywhere in the midfield.