Rick Peterson
Erick Harding "Rick" Peterson (born October 30, 1954) is an American former pitcher and pitching coach in Major League Baseball. He was most recently the director of pitching development for the Baltimore Orioles. He was a pitcher in the Pittsburgh Pirates organization, but is most notable as the pitching coach for the Moneyball era Oakland Athletics, New York Mets, and the Milwaukee Brewers.Peterson is renowned for his unique and pioneering use of biomechanical analysis and research and mental game principles to help pitchers improve their pitching delivery and avoid injuries. His nicknames include "The Jacket" because he always wears a jacket during games, and "The Professor." He is also known for placing his hand on the shoulder of the pitchers to help them remain calm during mound visits. Provided by Wikipedia