As a man to man coach, I was excited when he was hired at U of Wisconsin, and even more excited to go to a practice in his first fall in the early 1990's. I was shocked when he was not teaching his aggressive, denial man to man defense.
When an assistant was asked what was going on, he said that Bennett felt they did not have the athletes to do the aggressive man to man, and compete in the Big Ten. "We are just trying to keep the ball in front of us and make them shoot from outside.
That was combined with Bennett's "sureness" offensive drills where they worked 3 on 0, 5 on 0, 3 on 3 and 5 on 5 with the entire emphasis to not make any pass that was not a sure pass. It was clear Bennett's philosophy was to simply not make mistakes. Today you see this same philosophy in his son and in Bo Ryan.
Here is a description from Sports Illustrated about the change in Dick Bennett's philosophy...
March 12, 2012
First Line Of Defense
The system developed by Dick Bennett two decades ago has his son Tony's Virginia team on the brink of its first NCAA tournament bid in five years