Serving with assignments

A serves, B passes and C catches.

Assignments:

• A moves two steps to the left, two steps to the right, and serves.
• A tosses the ball, dives underneath the ball cart, and serves the ball that he just tossed up.
• A dives underneath the ball cart and serves a ball that is tossed up by someone else.
• B waits in a deep squat until A tosses the ball.