Players set up as shown in the diagram.
The player who makes the first pass, will run around the outside of the circle and back to their original spot.
The rest of the players in the circle will pass the ball around.
If the person running gets around the circle and back to their original spot before the ball gets there they are the winners.
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.