Oakland Raiders coach Jon Gruden, center left, talks with quarterback Derek Carr (4) and offensive players at the NFL football team’s facility in Alameda, Calif., Tuesday, April 24, 2018. (AP Phot …

Oakland Raiders coach Jon Gruden, center left, talks with quarterback Derek Carr (4) and offensive players at the NFL football team’s facility in Alameda, Calif., Tuesday, April 24, 2018. (AP Photo/Jeff Chiu)