The Raptors demonstrated some horrible execution this week. On Tuesday, they lost to Washington in overtime. To give credit where it is due, they ran a very cute side out for Charlie Villanueva to create a baseline jumper before the halftime buzzer. Usually, I find that Sam Mitchell’s quick hitters are dry and predictable, especially compared to what Kevin O’Neill would diagram. Occasionally, Mitchell comes up with a well-conceived, effective play. In overtime, I appreciated how the Wizards ran Gilbert Arenas off repeated dribble picks. Given that Arenas had dropped over thirty points, I don’t know why the Raptors did …