New York Giants head coach Tom Coughlin celebrates with the Vince Lombardi Trophy after their 21-17 win against the new England Patriots in the NFL Super Bowl XLVI football game in Indianapolis. (AP Photo/Mark Humphrey)

New York Giants head coach Tom Coughlin is doused by his player Madison Hedgecock after the Giants beat the New England Patriots 17-14 in the Super Bowl XLII football game on Sunday, Feb. 3, 2008, in Glendale, Ariz. (AP Photo/David J. Phillip)

Boston College Football coach Tom Coughlin speaks at a press conference about possibly being named to coach the New York giants of the NFL on Dec. 10, 1992 in Tampa, FL. (Associated Press)

New York Giants head coach Tom Coughlin, left, greets New England Patriots head coach Bill Belichick, right, before the NFL Super Bowl XLVI football game in Indianapolis. AP Photo/David J. Phillip)

New York Giants head coach Tom Coughlin kisses the Vince Lombardi Trophy after the Giants beat the New England Patriots 17-14 in the Super Bowl XLII football game on Sunday, Feb. 3, 2008, in Glendale, Ariz. (AP Photo/David Duprey)

New York Giants quarterback Eli Manning (10) talks with coach Tom Coughlin during warmups before the Giants faced the New England Patriots in an NFL preseason football game at Giants Stadium in East Rutherford, N.J. (AP Photo/Kathy Willens)

New York Giants head coach Tom Coughlin talks to his team following a victory over the Carolina Panthers in a week 1 NFL football game at the New Meadowlands Stadium in East Rutherford, New Jersey on Sunday September 12, 2010. (AP Photo/Evan Pinkus)

Jacksonville Jaguars coach Tom Coughlin looks from the sideline during an NFL football game against the Oakland Raiders at Oakland Alameda County Coliseum on September 15,1996 in Oakland, California. (AP Photo/David Stluka)

New York Giants coach Tom Coughlin during the NFC Championship football game against the Green Bay Packers, Sunday, Jan. 20, 2008, in Green Bay, Wis. (AP Photo/David Duprey)

New York Giants head coach Tom Coughlin, not seen, is doused with liquid after the team defeated the New England Patriots 21-17 in the NFL Super Bowl XLVI football game, Sunday, Feb. 5, 2012, in Indianapolis. (AP Photo/Charlie Riedel)

New York Giants quarterback Eli Manning, left, and his coach Tom Coughlin look at the Vince Lombardi Trophy as they celebrate after the Giants beat the New England Patriots 17-14 in the Super Bowl XLII football game in Glendale, Ariz. (AP Photo/Stephan Savoia)

New York Giants head coach Tom Coughlin walks the sidelines during the fourth quarter of their pre-season football game against the Baltimore Ravens on Aug. 11, 2006 in Baltimore. (AP Photo/Chris Gardner)

Boston College Head Coach Tom Coughlin gets drenched with water from team members after they defeated Virginia at the Carnquest Bowl Saturday, Jan. 1, 1994 in Miami.FL. (AP Photo/Hans Deryk)

New York Giants head coach Tom Coughlin walks off the field after the Giants lost 35-30 to the Philadelphia Eagles in an NFL football game, Sunday, Jan. 3, 2016, in East Rutherford, N.J. (AP Photo/Julio Cortez)

New York Giants head coach Tom Coughlin stands in the locker room for what could be his last time following a week 17 NFL football game against the Philadelphia Eagles on January 3, 2016 in East Rutherford, NJ. (Evan Pinkus via AP)

New York Giants head coach Tom Coughlin puts his hat back on his head after the national anthem before an NFL football game against the Philadelphia Eagles, Sunday, Jan. 3, 2016, in East Rutherford, N.J. (AP Photo/Kathy Willens)

New York Giants head coach Tom Coughlin is shown during a football mini-camp in East Rutherford, N.J., in this May 12, 2007 file photo. (AP Photo/Bill Kostroun)

New York Giants head coach Tom Coughlin listens to a reporter's question after Giants NFL training camp on July 31st, 2007in Albany, N.Y. (AP Photo/Mike Groll)

New York Giants head coach Tom Coughlin answers questions for the media Thursday, Jan. 31, 2008 in Chandler, Ariz. The Giants will play the New England Patriots in Super Bowl XXLII on Sunday in Glendale, Ariz. (AP Photo/Julie Jacobson)

New York Giants kicker Lawrence Tynes (9) and Giants head coach Tom Coughlin celebrate after the Giants beat the New England Patriots 17-14 in the Super Bowl XLII football game on Sunday, Feb. 3, 2008, in Glendale, Ariz. (AP Photo/David J. Phillip)

New York Giants head coach Tom Coughlin shout his dismay concerning an official's call in the second half of an NFL game between the New York Giants and New Orleans Saints in the Louisiana Superdome in New Orleans, Sunday, Oct. 18, 2009. (AP Photo/Bill Feig)

New York Giants head coach Tom Coughlin shakes hands with Tennessee Titans head coach Jeff Fisher after a week 3 NFL football game at the New Meadowlands Stadium in East Rutherford, New Jersey on Sunday September 26, 2010. (AP Photo/Evan Pinkus)

New York Giants coach Tom Coughlin watches the action at the NFL combine in Indianapolis, Saturday, Feb. 25, 2006. (AP Photo/Michael Conroy)

New York Giants head coach Tom Coughlin wearing an New York Police Department cap watches the action on the field during the first half of an NFL football game against the Washington Redskins in Landover, Md., on Sunday, Sept. 11, 2011. (AP Photo/Cliff Owen)

New York Giants' coach Tom Coughlin looks from the sideline during their' 23-0 loss to the Carolina Panthers in a NFC wild card playoff football game at Giants Stadium in East Rutherford. N.J., in this Jan. 8, 2006 photo. (AP Photo/Kathy Willens)

Head coach Tom Coughlin of the News York Giants reacts to a call during a game against the Green Bay Packers at Lambeau Field on October 3, 2004. (AP Photo/G. Newman Lowrance)

New York Giants head coach Tom Coughlin celebrates a victory with kicker Josh Brown (3) and quarterback Eli Manning (10) after a week 16 football game against the Detroit Lions on December 22, 2013 in Detroit, Michigan. (AP Photo/Evan Pinkus)

New York Giants head coach Tom Coughlin claps in front of quarterback Eli Manning as his team warms up before a preseason NFL football game against the Chicago Bears in East Rutherford, N.J. (AP Photo/Bill Kostroun)

New York Giants head coach Tom Coughlin takes the field before an NFL football game against the Dallas Cowboys, Sunday, Sept. 13, 2015, in Arlington, Texas. (AP Photo/Tony Gutierrez)

New York Giants head coach Tom Coughlin and former head coach and Hall of Fame member Bill Parcells pose with the 4 Superbowl trophies they won following an OTA football practice at the Quest Diagnostics Training Center on June 10, 2013 in East Rutherford, NJ. (AP Photo/Evan Pinkus)