During one of the most successful coaching careers in football, Pete Carroll rarely has committed errors. He did at Southern California with Clay Matthews, and Carroll still shakes his head about it. A defensive mastermind throughout his years in pro and college football, Carroll always has had an eye for talented linebackers. Somehow, he didn't immediately see the skill in Matthews, a third-generation player who wasn't much more than a special teams guy early on with the Trojans. More...