Shot Tracker, where every player has a chip on their practice uniform (shoe?) somewhere, and there's a chip in the ball they practice with. It has tracked every single shot every player has made from the beginning of summer to now. He knows how many 3 pointers, layups, 2 point pull up jumpers, and every other type of shot every player has taken and which ones they've made. He literally has data on every shot taken by every player over the past 6 months and the outcome of the shot. All that data goes into how he plans the offense for the team.