Daniel Dean Warthen is an American former professional baseball player and current coach for the Texas Rangers. He played in Major League Baseball (MLB) as a left-handed pitcher from 1975 to 1978 for the Montreal Expos, Philadelphia Phillies, and the Houston Astros.

Erick Harding "Rick" Peterson 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 Oakland Athletics, New York Mets, and the Milwaukee Brewers.