How three football legends -- Bill Walsh, Joe Gibbs, and Bill Parcells -- won eight Super Bowls during the 1980s and changed football forever. Bill Walsh, Joe Gibbs and Bill Parcells dominated what may go down as the greatest decade in pro football history, leading their teams to a combined eight championships and developing some of the most gifted players of all time in the process. Walsh, Gibbs and Parcells developed such NFL stars...