I actually think the coaches have done a semi-decent job using JP to set up the run game. Having the guy throw a few middle to deep patterns has helped keep the 8th man out of the box so far, giving Willis some running room (I didn't catch the Bucs game, so I can't comment on that one).
Problem is, the kid isn't hitting those patterns. Unless he starts shaping up, opposing defenses aren't going to give a crap and stick 8 in the box regardless. It's only going to get tougher until JP shows he is capable of hitting enough passes, even against single coverage, to pull that safety back.