DeMarcus Cousins shoves off assistant coach Jarron Collins and goes hard for the basket. Cousins drives to the hoop and makes a shot from close range, then a turnaround jumper goes in before he moves to the left side to begin the sequence again. Long before the rest of the Golden State regulars have taken the court for pregame warmups, there is Cousins, earbuds in, meticulously focused on his preparation.