(22 Aug 1941 - )
sportsman who is a former American football coach, one of the most successful NFL head coaches of all time.
Science Quotes by Bill Parcells (1 quote)
When you dont know that you dont know, its a lot different than when you do know that you dont know.
— Bill Parcells
As a coach, explaining a player's improved performance. As quoted in William Harmon, The Poetry Toolkit: For Readers and Writers (2012), xi.