6 Players with 2 balls, Player 1 starts with one ball and passes to Player 5 then Player 3 whilst that is going on Player 6 starts with a ball and passes it to player 2 then player 4. Once a player has passed the ball they must follow their pass.
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.