Yes, I agree that Marbury is a selfish player. I'm not a huge Marbury fan, but I do have to point out that he put the Suns on his back last year and made the playoffs, nearly upsetting the Champs (Spurs) in the first round.
With the right coach, he's a talent that can be guided to help carry a team, especially on the offensive end. Not sure Lenny is that guy though...