Blue player 1 starts with the ball in their hand on the baseline on the left hand side of the key. They then roll the ball towards red player 1 and can pick it up once its gone past the free throw line.
Red player 1 must run as soon as the ball is thrown to behind the backboard before having a 1 v 1. Roles are reversed once the game is over.
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.
The ball screen produces almost half of all professional offensive possessions, yet most teams still teach it as a memorised play. The modern approach trains the read - giving players a framework to decide based on what the defence does, not what the coach called.