My understanding is that the Jaguars will not hire a quarterbacks coach.  In this case, I think "passing game coordinator" largely means quarterbacks coach, but is a nicer title to show respect to his experience.  I suspect he may have a little more influence over the weekly offensive plan than the typical quarterbacks coach.  The title also gives him more latitude to give advice to the wide receivers coach or tight ends coach or any other coach that impacts the passing game.  He's an experienced offensive coordinator, so the Jaguars might as well use his experience to their benefit.  I would think of him as the quarterbacks coach.  Anything above and beyond that is a bonus.

---