Set out five cones at random around the basket.
Working in pairs, players must shoot from one cone and then move to the next cone, continuing to shoot for 1 minute (players must not shoot from same cone twice in a row).
The player's partner must pounce on any rebounds and try to score any shot that the other player does not get in.
After 1 minute players swap roles.
The rebound player keeps score for the shooting player. Each basket scored is worth 2 points.
Good team defence is five players guarding the ball, not five separate one-on-ones. The shell drill is where that starts, so here is how to teach help-side positioning and rotations from the first week of the season.
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.