Look if you are the greatest running back in the history of the sport and you are playing on a team that has no passing game, no qb and no wr's vs a big team that is designed to stop the run, by stacking the box, look I don't care how smart you think you are, none of that shit will work, don't believe me ask Barry Sanders..
Well this is essentially what happened with the CAvs when they played the Mavs, remember they were whipping the Mavs ass until they started playing the zone..
But to the Heat credit they went out and got some sharp shooters and that zone bullshit became history...
This is why I always say that a LeBron James led team will only go as far as his outside shooters allows him...