He also previously served as an assistant coach for the Atlanta Falcons, Tennessee Titans, Minnesota Vikings, and Indianapolis Colts.
[3] In 2007, Gannon was hired by the Atlanta Falcons as a defensive quality control coach, following Bobby Petrino to the National Football League.
[10] Two days after losing Super Bowl LVII, Gannon was hired by the Arizona Cardinals as their head coach on February 14, 2023.
[11][12] On April 27, 2023, it was revealed that Gannon had interviewed with the Cardinals the week after the Eagles won NFC Championship Game, which is a period of impermissible conduct.
[13] According to Marcus Hayes of The Philadelphia Inquirer, the Eagles front office was furious at Gannon believing that he was distracted prior to the Super Bowl.