Breaking the diamond press requires quick passes along with getting the ball to your best ball-handlers. Your players must be able to quickly inbound the ball before the defense can get set. 4 inbounds the ball. 2 and 3 are on the wings.
Why is there no full court press in the NBA?
Most NBA teams don’t bother with full court presses till the end of game mainly due to the fact that the risk is greater than the reward in most cases. When a defender presses the point guard in the backcourt, he poses the risk of the offense passing him, leaving one less defender near the basket.