It really does not make sense in how they were allowed to pitch with such bad mechanics. Adding in the fact they were seemingly throwing 110+ pitches every fith day still amazes me and others. I know Prior came into the league with these so called perfect mechanics. Maybe that played a role in the management allowing him to throw so many pitches. I agree with PingHitter in the fact fatigue played a role. I may be wrong, but I don't think Prior every thrown more than 150 innings in his life before that 03 season. Add in the fact he has horrible mechanics and you have your self a major issue. That is why I am worried about Marmol. I don't think he has the mechanics that will keep him healthy to be a starter. He is better suited in that closer's role throwing limited pitches. You can baby a pitchers arm all you want. Eventually those bad mechanics will catch up to him. When evaluating a pitcher, its nice to look at his stats, but you also have to look deeper. You have to check their mechanics and their other intangibles.