One player has a ball and another player starts in the middle of a cross-shaped set of cones. On the command, Red Player 1 moves to touch one of the cones before returning back to the middle to receive a pass from White 1.
The player then has to touch a different cone before returning back to the middle to receive a pass. Once the middle player has touched all four cones then the player switch over.
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.