Actually, Mike Marshall is just a plain pain in the ass. Always has been. I don't know how he is working with players, but he was one of the least liked players in baseball.
He mostly just works with failed major leagues and independent players nowadays. He likes to preach the "theory" of pitching rather than apply research data (in addition to the theory); this method was all fine and dandy until the ability to measure the amount of force placed on each muscle appeared. I don't pay him much attention either way.
