You are most certainly welcome to your opinion, but your blanket statement is ridiculous. I think you and quite a few others on here just don't like our defensive philosophy. Many want a huge nose tackle like Ted Washington and run-stuffing MLB. Fine. If that's what you expect then Beane has failed miserably. But, that is not reality for the Bills defense.
The Bills run a defense that thrives on sideline to sideline mobility. This, as others have said, makes a solid pass-stopping defense. So, if you're expecting FA acquisions and draft picks that fit a run-stuffing style, then you're welcome to be critical but you won't be happy.
As I see it, we have a really promising group of defensive talent crafted to stop the pass in this pass-happy NFL.