Coaching
Following his playing career, Contreras served as a coach in several major league organizations, including a few at the major league level. He was the pitching coach for the New York Yankees in 1995, the Seattle Mariners in 1997-98, and then with the team that gave him his shot at the majors, the White Sox, from 1998 until 2002. In 2005, he returned to the Yankees organization, where he currently serves as their minor league pitching coordinator. He gained recognition for developing pitch count guidelines—styled "Joba rules"—for Joba Chamberlain.
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