Raiders owner Mark Davis in wake of Jon Gruden's resignation

Stephen A. Smith believes Jon Gruden is done after he sent offensive emails over a period of 10 years. (1:14).
HENDERSON (Nev.) -- Mark Davis, owner of the Las Vegas Raiders, broke his silence Wednesday morning following Jon Gruden's resignation as coach Monday night.

"I have no comments. Ask the NFL. They know all the answers," Davis said to ESPN.

Davis was reluctant to elaborate, but his words suggest that there is more to this situation than Gruden’s leaked emails and offensive messages. These emails were discovered during an investigation into working conditions at Washington Football Team.

Despite having scanned 650,000 emails, investigators only made Gruden's messages public. The NFL Players Association has asked the NFL to release all emails.

Gruden's resignation was announced by Davis, who made a brief statement stating that he accepted Gruden's resignation but had not discussed the matter publicly prior to Wednesday.

The Raiders had a Tuesday off, but they returned to practice Wednesday under interim coach Rich Bisaccia. Bisaccia will continue his duties as special teams coordinator.

Per Davis, Mike Mayock, general manager, will continue to hold his title, but will now have 51% power over personnel moves. Bisaccia has 49%. It was Gruden at 51% and Mayock at 49%.