Duane Charles "Bill" Parcells (born August 22, 1941) is a former American football head coach, most recently with the Dallas Cowboys from 2003 to 2006. He is known as "The Big Tuna", a nickname about the shape of his physique derived from a team joke during his tenure as linebackers coach of the New England Patriots. On February 2, 2013, Parcells was voted into the Pro Football Hall of Fame.