FILE - San Francisco 49ers coach George Seifert smiles as he holds the Vince Lombardi trophy after defeating the Denver Broncos in Super Bowl XXIV, Jan. 28, 1990. (AP Photo/Eric Risberg, File)

FILE - Washington Redskins head coach Mike Shanahan looks on against the Denver Broncos during an NFL football game Sunday, Oct. 27, 2013, in Denver. (AP Photo/Jack Dempsey)

FILE - New York Giants head coach Tom Coughlin holds up the Vince Lombardi Trophy during a news conference after NFL football's Super Bowl XLVI in Indianapolis, Feb. 6, 2012.(AP Photo/Mark Humphrey, File)

FILE - Jacksonville Jaguars executive vice president of football operations Tom Coughlin walks off the field before the start of an NFL football game between the Jacksonville Jaguars and the Los Angeles Chargers, Sunday, Dec. 8, 2019, in Jacksonville, Fla. (AP Photo/Stephen B. Morton, File)

FILE - Former San Francisco 49ers head coach George Seifert speaks to reporters about being inducted into the team's Hall of Fame during NFL football minicamp in Santa Clara, Calif., Tuesday, June 17, 2014. (AP Photo/Jeff Chiu, File)

FILE - Denver Broncos coach Mike Shanahan poses with the Vince Lombardi trophy and a Broncos helmet at a Super Bowl news conference in Miami, Jan. 29, 1999. (AP Photo/Dave Martin, File)