Stand with your knees about shoulder-width apart and bend over slightly. With the ball in your right hand, pass it between your legs in a figure eight motion to your left hand. Swing the ball to the front and then pass it from your left hand back to your right hand through your legs. As with all ball handling drills, start slowly and increase your speed as you get more comfortable.
Rebounding is the least glamorous thing in basketball and one of the most decisive. It is also almost entirely a habit, which means it is entirely coachable.
Good spacing is only the start. The best modern offences teach players to attack the defence's rotations and play in a permanent 4-on-3 - here is how to coach that read.
The ball screen produces almost half of all professional offensive possessions, yet most teams still teach it as a memorised play. The modern approach trains the read - giving players a framework to decide based on what the defence does, not what the coach called.