Can't blame you OP for being skeptical. I think the best we can all do is simply wish for them to get it right this time. I certainly don't have expectations though -- I think that's an easy trap to fall into, just because we got Suh and a few solid players this offseason doesn't give us a beeline for the playoffs.
AFC East is going to be tough, bad QB's or not. We saw just how bad we did last year against Buffalo in that first game, and that was with EJ Manuel. Same with the Jets, we gave Geno Smith his best career game, at HOME.
Ya there's been a few ugly ones the past few years. But in that Buffalo game, we were a few dropped sure-TDs (ball in the breadbasket) away from a totally different outcome, even with as bad as the team played overall. And in that Stej game, the D had regressed so far from week 9 it wasn't even noticeably the same team on that side of the ball.
I'd say there's plenty reason for optimism this season. The offense has a full year experience in the system and has the lingo down...they're not trying to learn it from scratch like last year, where much of the terminology and concepts weren't ingrained at that point.
Even aside from Suh, there are plenty to be hopeful about.
Lamar absolutely thrived in this offense last year, and he's steadily improved since he's been here...I don't expect that to change.
The youngsters in some of the defense positions are steadily improving, and a few are showing flashes not shown in previous offseasons (Taylor specifically, even Aikens and Thomas).
The WR corps should be called "All-State." Hands hands hands. Potential game-changing TE to go with that as sugar on top.
But you're absolutely correct, the AFC East is a defensive monster at the moment...arguably sporting the top 3 DL in the league. The one thing that "should" separate us from Stej / Jills is the QB position (just the other day the Jills didn't complete one pass, from their 3 potential starting QBs, in the first series of their 11 on 11 work). I'm more concerned about the Stej though...if Geno can make even a few less stupid decisions (I don't think he's as bad as some of his performance at this point), they should show well with all those guys they have.
With the addition of Suh/Mosley and some of the secondary guys, we're much deeper on D and that should pay dividends later in the season.
The O could put up an equal performance to 2014 and we'd be 10-6 IMO...of course it all remains to be seen, but I'm counting on an exciting 2015.