I am happy for you as a similarly sufffering fan that you have had a good season, but I am not buying the Jags, or your misplaced confidence. Do not forget that we had two years of Marrone and Hatchet Job here and probably know them better than you do. The Jags have talent no doubt, especially on defense, and Buffalo's weakness is offense. That said, despite the excuses you would like to make for the poor performance of your team over the last two weeks, that performance has more to do with Marrone's mediocre coaching ability than anything else.
You expect them them to suddenly turn it on come Sunday, but I do not. Unless Buffalo turns it over and gives the Jags a couple of freebies, this game will be extremely close all the way. The Buffalo secondary is more than good enough to deal with Bortles. The Jags will try to run, and may have some success, but in the end, turnovers will favor Buffalo. I expect a low scoring game and some completely bonehead coaching decisions by Marrone along the way to a 16/13 Bills victory, exposing the Jags for the overrated team they are.
Which was entirely possible until they laid an egg against SF.