Players 2 and 3 have basketballs.
Player 2 passes the ball to player 1 and cuts as diagrammed.
Player 1 shoots the ball and goes for the rebound.    
Player 2 now receives the ball at the top of the key off a pass by player 3 and shoots.

Drill continues until 1 player makes 10 shots (can set target scores).

Drill can be run on all 4 corners of the court.