“There's so much more involved with the game than just sitting there, looking at the numbers and saying, 'OK, these are my percentages, then I'm going to do it this way,' because that one time it doesn't work could cost your team a football game, and that's the thing a head coach has to live with, not the professor.”

American former professional football linebacker and coach

Bill Cowher is an American former professional football linebacker and coach. Born in 1957, he is best known for leading the Pittsburgh Steelers as head coach for 15 seasons. He began his coaching career as an assistant under Marty Schottenheimer with the Cleveland Browns and the Kansas City Chiefs, and later served as the Chiefs’ defensive coordinator from 1989 to 1991. Named Steelers head coach in 1992, he remained in that role through the 2006 season before retiring. Afterward, he joined The NFL Today as a studio analyst.