Ball in the middle of the free-throw circle, 4 attackers with defenders around the circle. When coach calls "shot", attackers try to get the ball. How long can the defenders box out? Attackers can not dive for the ball.
Bill Pangos - score one point for the attackers if they touch the ball within 4 seconds, otherwise one point for the defenders.
Option - start with dummy defence, work on offensive rebounding (step-over and spin moves), then with dummy attackers, work on defensive rebounding (step across and reverse pivot moves).