Las Vegas Raiders head coach Jon Gruden speaks to his players during the first half of an NFL football game against the Indianapolis Colts, Sunday, Dec. 13, 2020, in Las Vegas. (AP Photo/Isaac Brekken)

FILE - In this April 11, 2019, file photo, Oakland Raiders defensive coordinator Paul Guenther attends an NFL local Pro Day at the team's football facility in Alameda, Calif. The Las Vegas Raiders fired Guenther after he failed to make any significant improvement for the unit in nearly three full seasons on the job. (AP Photo/Jeff Chiu, File)

Indianapolis Colts running back Jonathan Taylor (28) celebrates after scoring a touchdown against the Las Vegas Raiders during the second half of an NFL football game, Sunday, Dec. 13, 2020, in Las Vegas. (AP Photo/David Becker)

Las Vegas Raiders defensive tackle Kendal Vickers (91) comforts quarterback Derek Carr (4) after a loss to the Indianapolis Colts in an NFL football game, Sunday, Dec. 13, 2020, in Las Vegas. (AP Photo/Isaac Brekken)