It is a team game, so it is hard for one guy to win it but easy for any guy to lose it.
I agree that Marbury has not been a good fit on the teams he's played with. The Nets were overwhelmed by injuries when he was there. The Suns were in the midst of rebuilding when here. But the criticism he gets is not entirely unjustified. It boils down to this:
-- Marbury dominates the ball and wastes too much time dribbling around.
-- Marbury will continue to try to attack the basket even when it is clear the opponent is prepared to double team him.
-- Marbury only passes after he penitrates, so his teammates end up standing around hoping to get a pass.
-- Marbury is not effective in the open court which negates having athletes who can run.
-- Marbury is not effective at getting the ball inside, even when he has a stud like Stoudemire available.
-- Marbury is not a very good outside shooter, but he takes too many early three pointers when no one is in position to get offensive rebounds.
-- On offense, Marbury plays like an SG, but he cannot defend opponent's SG's.
I can imagine a team where Marbury might thrive, but it is obvious that Issah Thomas has no clue.