I'd say Kyle is one of the few effective defenders we have on the line. His lack of size may reduce his effectiveness at the nose position, but it certainly isn't from his lack of trying. I agree that Donte is the only player out there laying down big hits, everyone gets down on him, but I think he is playing fine.
Here is the game plan to beat the bills.....misdirection running plays, and short passes to the flat, which is generally the tight end. Second (maybe 3rd) game in a row we've been exploited by those types of plays.