Lindy Cameron Ruff (born February 17, 1960) is a Canadian professional ice hockey coach and former player who is the head coach for the Buffalo Sabres of the National Hockey League (NHL). Ruff was previously the head coach of the Sabres from 1997 to 2013, winning the Jack Adams Award in 2006, and has also served as head coach of the Dallas Stars and New Jersey Devils. Ruff has won over 600 games with the Sabres, which is the second most amount of wins with one team in NHL history.
https://en.wikipedia.org/wiki/Lindy_Ruff