Oakland Raiders head coach Jon Gruden gestures during the first half of an NFL preseason football game between the Raiders and the Detroit Lions in Oakland, Calif., Friday, Aug. 10, 2018.
Oakland Raiders head coach Jon Gruden gestures during the first half of an NFL preseason football game between the Raiders and the Detroit Lions in Oakland, Calif., Friday, Aug. 10, 2018. John Hefti AP
Oakland Raiders head coach Jon Gruden gestures during the first half of an NFL preseason football game between the Raiders and the Detroit Lions in Oakland, Calif., Friday, Aug. 10, 2018. John Hefti AP