Our rebounding!!!!
Miami is the 4th worst rebounding team in the league, we have the league's leading rebounder, and they outrebounded us big

They were ahead like 33-19 and had 10 offensive rebounds after 3 quarters.
Their 5 point lead to enter the 4th was all on our defensive rebounding (or lack thereof).
Turnovers in the 4th
MWP still doesn't get it, and seemingly neither do our other players that keep getting him the ball.
He also played mediocre D against LeBron all game long
Injuries (yes, still, we had Clark and Jamison as our "bigs" against effing LeBron!)