Coach spots a puck near center ice, Grey starts with a 1v0.
Coach spots a second puck, Grey tracks hard against two Blue players, 2v1.
Coach spots a third puck, Blue tracks hard against the original Grey player and two new Greys, 3v2.
Optional: Add a fourth puck after the initial 3v2 play, and/or add a third Blue player to turn the last puck into a 3v3 in-zone.
Focus: Rush offense/defense principles, work rate & conditioning.