Where to begin? Let's see:
Injuries are a part of the game, and good teams can win despite adversity. The Bills are a work in progress, but aren't all the way there yet. The 4-0 start blinded many to that fact.
Schobel is not dominating the line of scrimmage this season when healthy. Now, before people get all bent out of shape, I'm not saying he sucks. Far from it. What I am saying is that he certainly has not been performing like a high priced DE should to date.
Stroud may be banged up, but he's played a lot tougher @ the point of attack in his career even while banged up. Get off those blocks, big man! You've shown that you can do it (w/out Stroud's presence, you'd see last year's defense for the most part), so make it so.
Ellison has been a big disappointment since his rookie season (when he was probably the most consistent LB on the roster, surprisingly). It's been downhill ever since.
Ko? He's okay, but nothing special just yet. Maybe he's on the way and maybe he's just what he's shown so far: an okay safety. Time will tell, and I'm rooting for the former.
It's all JP's fault, Part XXXVIIII...
This line has shown that their ability to pass block is greater than their run blocking ability. How Marshawn was among the top AFC backs is a mystery, as I usually see a few D linemen hanging off of him after he takes the handoff. As I said earlier, I would LOVE to see him get to the 2nd level w/out being beat up. I'll bet we'd see a true beast then.
The Bills are so good that they'll nudge past the .500 mark? Actually, I get that, and you may not be that far off from what happens. The schedule toughens up quite a bit from the start of the year, so they will get to show us all what they are truly made of and whether or not this is the year we see the Bills in the postseason.