Setup the practice as shown.
Player 3 runs into the arc and runs off the screen created by player 2 before receiving the ball from player 1, turning and then shooting.
Player 3 then collects the ball and returns the ball back to player 1.
Make sure players take 1 or 2 steps away from the screen first, before cutting off the screen. This is called "setting up the defender".
Players should be rubbing shoulders when they come off a screen, so there is no room for the defender to get through.
Four players standing still make every ball handler's job harder. Teach V-cuts, L-cuts and back cuts so your team gets open and punishes defenders who overplay.
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.