My grade: D+
The only reason I'm not giving the Jaguars an outright 'F' for their grade is for two reasons. The first reason is I respect how the defense is playing despite getting zero relief from the offensive side of the ball. Nearly halfway through the game the offense had totaled negative yardage on the day, but the defense was still holding their own against the Seahawks offense.
The other positive I saw was that the team still played their butts off in the second half and didn't appear to let up, despite getting blown out. While some of it was against backups and not the full strength Seahawks squad, they still put up a fight rather than laying down.