Richard John Hoak is an American former professional football player and coach for the Pittsburgh Steelers of the National Football League (NFL). He played for the Steelers as a running back. Hoak played college football for the Penn State Nittany Lions, and was selected by the Steelers in the seventh round of the 1961 NFL draft. He played for the Steelers from 1961 to 1970, and then became the longest tenured coach in the team's history, from 1972 to 2007.