John Calipari: Why play on the perimeter?

Came across a 2007 story from ESPN on John Calipari's new style at Memphis.  Coach Cal describes it as:

- Wide open
- Attacking the rim on every chance
- Princeton on steriods style of play

Cal got the basic philosophy from a JUCO coach.  He made a few tweaks, put his stamp on it, and rolled it out.  Says Cal:  "The way the game is going, it's changing.  Why play on the perimeter?  [Players] feel unleashed."