1974 NL Cy Young award winner Mike Marshall, excuse me, Dr. Mike Marshall, Ph. D., Michigan State, 1978 in Exercise Physiology, says he has a way to keep baseball pitchers from getting hurt.
He claims that some changes in the basic throwing motion can pitchers from hurting their shoulders and elbows. However, major league baseball is not interested. This article from the St. Petersburg Times details Marshall's plan. The second link is to Marshall's own website.