Players work in pairs with two balls between them. One ball starts on the floor with a player while the other ball is in the hands of the players opposite.
The ball is overhand passes at the same time that the other ball is pushed by the leg of the opposite players.
This drill is great for improving leg-hand coordination and also works on improving players vision.
New hitters rarely miss because of their arm. They miss because of their feet. Build a reliable approach, then time it with your setter.
When your hitter gets stuffed, five teammates standing and watching is how you lose the point. Good attack coverage turns a blocked ball into a second swing.
Coaches spend hours correcting arms in serve receive when the real fault is almost always the feet. Fix the movement and the platform fixes itself.