Off the ball screen, practiced in a closed situation.
In threes players set up in a triangle.
player at the top passes the ball in either direction then sets the screen the opposite way. in the diagram 1 passes to 3 and sets a screen for player 2. 2 curls round towards the basket and receives a pass from player 3 to shoot a lay-up. collects the lay up and passes to either player and sets the a screen.
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.