Tag Team: 2. Box with 6 offensive players and 6 defenders (or equal numbers). Attackers pass ball around within the box. Coach has one ball for each two defenders. Use a stopwatch to keep track. On whistle, first pair of defenders go into box to clear ball. When they do, they go back to the sideline and tag in the next two defenders. Sequence ends when all pairs of defenders have gone. Time them, then switch.