Setup. Four cone goals, 3 metres wide, on the sides of a 15 metre square, all facing in. A keeper in each. Coach in the middle with the balls.
How it runs. The coach rolls a ball to any keeper. That keeper has two touches to shoot at any of the other three goals. Whoever saves it shoots next, straight away. If a ball goes in, that keeper loses a life and the coach feeds a new ball to someone else. Three lives each. Shots must be below head height.
Make it harder. Two balls in play. Then throws only, with one hand.
With 4 keepers. A keeper in each goal.