ORCHARD PARK, N.Y. — As the dust settles from the Bills quarterback change, there's still work to be done overall to get back on the winning track, especially on the other side of the ball.

The Bills went bold to try and get things better on offense. The plan for the defense is far more simple — literally.

Kyle Williams calls it a "training camp mentality" this week, where tackling and gap integrity are being taught and worked on at a basic level.

"It's something that's needed. I mean, we had a little success, people talk about you on TV, 'Bills defense is doing good' and now we have people getting 300 yards on us every game," said Bills linebacker Preston Brown. "So we have to find a way to go back to the basics, get better, and just do what we did well at the beginning of the year."

"Scheme wise, we’ve been in the perfect place," said Bills linebacker Lorenzo Alexander. "Guys are in position, we just haven’t tackled well and used our hands well. Some of those little nuances that lead to big plays, and anytime you face a great back like we did last week in [Mark] Ingram and [Alvin] Kamara, when you’re making arm tackles instead of bodying up somebody, they’re able to break loose and create big plays. That’s not something [that] we’ve been accustomed to, but these last two weeks, we’ve kind of been lackluster on our technique and fundamentals, and it hasn’t been good enough.​"

"The effort's always been there. Like I said, I feel like we've got a really good defense," Bills safety Jordan Poyer said. "The fundamentals part of it, those come down to the little things and being disciplined and so back to square one. It's nothing against anybody or anything, it's just we got some things to work on and we got to work on them and fix them and we have to fix them fast."

"The great thing and the tough thing about the NFL is we're going to continue to see it until we get it fixed," Williams said. "So we're going to continue to work until we get it fixed and get back to where we were the first five or six weeks of the season and where we know the level we can play at."

Alexander says the Bills aren't desperate for a win, but definitely want to get the nasty taste out of their mouth. As good a chance as any to right things defensively against a Chargers offense that ranks in the lower third in the league in both yards and points per game.