Players must throw a self pass by putting throwing the ball ahead of themselves with back spin before jumping and catching the ball.
After having caught the ball players should land solidly on both feet before then selecting which way they are going to pivot in order to shield and protect the ball from the imaginary defender.
As players catch the ball they should be always thinking about where they can pass the ball to by catching the ball between their hands, under control with the intention to pass.
Protection of the ball involves placing body between ball and the opposing (invisible) player.
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.