Jon Gruden, left, after being announced as the head coach of the Raiders with owner Mark Davis …

Jon Gruden, left, after being announced as the head coach of the Raiders with owner Mark Davis ...

Jon Gruden, left, after being announced as the head coach of the Raiders with owner Mark Davis at the team facility in Alameda, Calif., Tuesday, Jan. 9, 2018. Heidi Fang Las Vegas Review-Journal @HeidiFang