OAKLAND, CA – AUGUST 10: Head coach Jon Gruden (L) and Owner Mark Davis (R) of the Oakland Raiders talking with each other while looking on as their team warms up prior to the start of a preseason NFL football game against the Detroit Lions at Oakland Alameda Coliseum on August 10, 2018 in Oakland, California. (Photo by Thearon W. Henderson/Getty Images)
OAKLAND, CA – AUGUST 10: Head coach Jon Gruden (L) and Owner Mark Davis (R) of the Oakland Raiders talking with each other while looking on as their team warms up prior to the start of a preseason NFL football game against the Detroit Lions at Oakland Alameda Coliseum on August 10, 2018 in Oakland, California. (Photo by Thearon W. Henderson/Getty Images)