Player starts the move by shooting - aiming to hit the rim to create the rebound for the other two players.
When the shot goes up the defensive player will turn and box-out the offensive player attempting to get the rebound.
If defence gets the ball, it will be passed out to the coach.
If offence gets the ball, the offensive player will play 1 on 1 against the defensive player.
Make sure that defensive players make contact and compete against each other.
After each turn players rotate in a clock-wise direction:
The attacker becomes the defender, the defender becomes the shooter and the shooter joins the back of the line.
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.