Bill Simmons frequently talks about a "good/bad" team. That's the one that beats up on the teams it should beat up on, but will rarely surprise you with an upset of one of the league's top powers. I think Jameis is clearly this year's good/bad QB. He'll put up great stats against the likes of Atlanta, LA, and SF, but if his match-up is a tough one (Denver, AZ) he'll underperform. (The Carolina game doesn't really fit that narrative; he was OK, but mostly reined in by Koetter's conservative play calling).
So while it's disappointing that he hasn't made the leap some of us were expecting, it's helpful to know this pattern, especially since he has a pretty cake schedule ROS, other than KC and Seattle in Weeks 11-12. My plan is to find a replacement for those two weeks and start him with confidence the rest of the time, especially during the playoffs.