Buffalo Bills Head Coach Marv Levy (Photo by Peter Brouillet/NFL)

4 Sep 1988: Buffalo Bills head coach Marv Levy looks on during a game against the Minnesota Vikings at Rich Stadium in Orchard Park, New York. The Bills won the game, 13-10. (Photo by NFL / Getty Images)

1989-1990: Buffalo Bills head coach Marv Levy looks on during a game against the Cleveland Browns at Cleveland Stadium in Cleveland, Ohio. The Browns won the game, 34-30. (Photo by Rick Stewart / Allsport)

8 Dec 1991: Buffalo Bills head coach Marv Levy looks on during a game against the Los Angeles Raiders at Rich Stadium in Orchard Park, New York. The Bills won the game, 30-27. (Photo by Ken Levine /Allsport)

Buffalo Bills head coach Marv Levy, inducted into the Pro Football Hall of Fame class of 2001, on the field before the AFC Divisional Playoff, a 37-14 victory over the Kansas City Chiefs on January 5, 1992, at Rich Stadium in Orchard Park, New York. (Photo by Edgar Webber/NFL)

6 SEP 1992: BUFFALO BILLS HEAD COACH MARV LEVY WALKS THE SIDELINES DURING THE BILLS 40-7 WIN OVER THE LOS ANGELES RAMS AT RICH STADIUM IN ORCHARD PARK, NEW YORK. (Photo by Rick Stewart/ALLSPORT)

Buffalo Bills Hall of Fame head coach Marv Levy before Super Bowl XXVII, a 52-17 Bills loss to the Dallas Cowboys on January 31, 1993, at the Rose Bowl in Pasadena, California. (Photo by NFL/NFL)

30 JAN 1994: HEAD COACH MARV LEVY OF THE BUFFALO BILLS WATCHES FROM THE SIDELINE DURING THE FOURTH QUARTER OF THE COWBOYS 30-13 VICTORY OVER THE BUFFALO BILLS IN SUPER BOWL XXVIII AT THE GEORGIA DOME IN ATLANTA, GEORGIA. Photo by Rick Stewart / Allsport)

Buffalo Bills Head Coach Marv Levy coaching during the Buffalo Bills vs New York Jets game on November 6 , 1994 at Giants Stadium. (Photo by Tom Berg/NFL)

12 Nov 1995: Marv Levy of the Buffalo Bills smiles during his first game back after surgery against the Atlanta Falcons at the Rich Stadium in Orchard Park, New York. The Bills defeated the Falcons 23-17. (Photo by NFL / Getty Images)

6 Oct 1996: Head coach Marv Levy of the Buffalo Bills jogs onto the field as he leads his team from the locker room during pre game warm ups before the Bills 16-13 victory over the Indianapolis Colts at Rich Stadium in Orchard Park, New York. (Photo by NFL / Getty Images)

Head coach Marv Levy of the Buffalo Bills. (Photo by NFL / Getty Images)