They don't pass the ball well. They rely almost exclusively on isolation plays to compensate for the lack of a playmaker who can create easier shot opportunities for the likes of Nowitzki. They aren't nearly as deep off the bench or as accurate from the perimeter as their reputation suggests, as evidenced by the Mavs' tendency to struggle against zone defenses even with shooters in the Nowitzki and Jason Terry class. They also often end up playing four-on-five offensively because their centers are non-scorers … and we won't even delve into the defensive side beyond mentioning the major troubles they had guarding the perimeter against the Warriors.