… in the 4th, they shouldn’t be on the roster. We can’t keep running our guys into the ground.
I can only conclude he doesn't trust them, and doesn't want to play them until they have "earned" minutes, or views them as practice squad players. It's a problem though when it comes to overplaying our main players. Al in particular looks gassed by the 4th quarter of each game. And when these scrubs actually make it on the court, because they haven't played in so long they are uncoordinated and shambolic and overeager to impress (e.g. Nesmith, Juancho).
I also suspect he only likes playing an 8 man rotation, 9 at the most, and picks ahead of time who those players will be, and doesn't deviate from his plan irrespective of what's happening in the game, unless we are the ones being blown out.