Jimmy probably does a lot more for offense than people realize, even when he's not getting in the box score. You need 11 football players on offense to make an offense go. You don't necessarily have to have 11 "superstars". JJ is that blue-coller guy that every offense needs. He won't be a stat-buster but I gaurentee you that without him the offense struggles. He pass blocks, he helps open holes for the tailbacks that get the glory. He's a former QB and a leader. He's occasionally involved in a reception or a goalline/short yardage carry as a reward for what he does for the rest of the offense. You need these guys to be succesful. Don't worry too much about what the box score says. I would bet my shirt JJ is content right now with his role.
And we're not even talking about what a monster he has been on special teams.