In fours play this first to make 10 points game.
Players stand in various positions (in front of the basket, to the right and to the left). Use cones to mark three spots.
A 4th player assists with returning the ball after rebounds.
The coach can blow their whistle after a minute has passed and all players should move clockwise to the next cone (or under the basket as the rebound returning player).
By playing this game for a minimum of 4 minutes it allows all players to have an equal go at shooting from all three positions.
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.