Defense--Diving & Rolling

A site must be build for explain all the defense system.
This is only few examples.

Defense -Diving & Rolling :

Players made a line..
The coach at 9 meters of the players make a forearm set in a zone situated at 6 meters of the players.
The diggers must shares to go up the goal to the setter area.

Defense-Dig :

The coach forward the net served on the « 3 meters area ».
Diggers (on position 6) must dig the ball.

Better Defense :

The coach stand up on a bench forward the net have all the balls.
Diggers make a lap on going touch the target and dig the ball spiked by the coach.