I would say that a manager impacts the outcome of 10% of the regular season games. So thats 16 games. Is he great if that is 14-2 and terrible if that is 2-14 ?? So be it. The majority of that impact, IMO, is the use of the bullpen and starting pitching. In the post-season the impact is bigger. I liked how Leyland used his pitching staff, particulary Kenny Rogers. He didn't pitch him in Yankee Stadium (good move) and he rode him very well in game 3 when a lot of managers would have pulled him before the 8th. I didn't like how Torre "tinkered" with his line-up. Using Sheffield at 1st base was just plain dumb. Then again, when your season is hanging in the balance and the best you can muster up is Jaret Wright you have a bit of a pitching problem.