Are you getting burned by dribble penetration? The pack line defense aims to prevent your opponent from getting the ball into the paint off the dribble. Pack line principles have been adopted by many basketball programs across the country. Created by former Wisconsin head coach, Dick Bennett, the pack line's biggest success has come at the University of Virginia, where Dick's son Tony Bennett led the Cavaliers to the 2019 National Title on the back of a very effective pack line defense.