Players line up on two sides, with one player stood in the middle. The ball starts on the side where there are most players lined up.
The first player passes to the middle player and runs to the left to receive the return pass.
Players then perform a quick one-two pass before passing the ball to the player on the opposite side.
The drill then starts again, with the player who made the initial pass remaining in the middle.
Each player should make some sort of movement before receiving the ball - it's not often in a real game that players simply stand still and wait for the ball to come to them!
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.