He knows that. I read a quote from him a few weeks back where he talked about how changing from a starter to a reliever changed his outlook on pitching. As a starter he always felt he could recover from a wild start and took more chances on the edge of the strike zone. As a reliever, he commented the games over if he gives up runs, so he started pounding the strike zone more. If you examine his 2005 splits, his K/BB ratio, BB/Inn, and BAA were all far better as a reliever. He was better, but he still walked 4.16 guys per 9 innings as a reliever. Prior knew he was nibbling to much last year and still didn't get it figured out. It's one thing to "know" something and another to put it into practice effectively. I love Dempster, but don't set the bar too high.