Jon Gruden has been an NFL head coach for 13 seasons and much of his failures and successes, like any football coach, is determined by the play of the quarterback. I ranked all 13 of those seasons based on QB play, beginning with weakest and ending with the best.
Here is that article.
1998 Oakland Raiders - Donald Hollas, Jeff George, Wade Wilson
Coming out of a 4-12 season with Joe Bugel as head coach, the Raiders retained former number one overall pick Jeff George after he posted 29 touchdowns, nine picks, and led the NFL with 3,917 yards in 1997.