1. It combines the weakside help of a zone defense and the strongside pressure on the ball of a manto-man defense.
2. It allows you to keep you post players in excellent rebounding position.
3. Allows guards to defend on the perimeter for proper floor balance to start your fast break.
4. The offense often has to go into their third or fourth option before getting a shot.
5. Doesn't take away from practice time to prepare against various offenses you might see.
Coach Crum switched all ball screens and screens away from the ball while at Louisville - something he picked up as an assistant at UCLA under Coach John Wooden.