Shaw, that is an excellent post, and I am with you. It was the right move to replace Dorsey. All the difficulties of this team are not on him, but he had his fair share of it.
But I also agree with Reks. As frustrating as it has been watching the offense struggle in every game they have lost, it has recovered enough to get a lead or tie it (Jets, Patriots, Broncos) or get back in the game (Jags, Bengals) in the 4th quarter in each lose, only to see the Defense -- with a bit of help from Special Teams -- let the other team drive the field and win the game in the waning moments.
And think about this: Two incompetent Special Team plays at the end of the game have led directly to two losses. Without this, the Bills are on top of the Division and contending for the number 1 play-off position (Perspective = TWO STUPID ST PLAYS!). Not to mention the general malaise of ST play for the entire season. I do wonder why Smiley has not been let go along with Dorsey.
Conclusion: It's been "complimentary dysfunctional football." All three phases have contributed. The problem is the offense should be bailing everyone out, and it is not.
Hope: A slight improvement in all three phases, and this is still one of the best teams in the AFC. There is hope. Sunday will be telling.