As a fan of the Texans, I can tell you their CB's in Stingley and Lassiter along with Pitre as their nickel is above average.
Come to think of it, I recall seeing where ESPN had them rated as the #1 CB duo in the league entering the year.
When coupling their individual skills with the front end of that defense you can see why that whole unit is so strong.
The way I saw that game go (thank you DVR) is the Bills o-line held up their end of the deal.
While they weren't ranked high as a unit, they gave up 2 sacks to a team that piles them up, Allen was kept clean mostly.
If that doesn't happen, most teams aren't beating the Texans and that defense.
The same will be true for the Bengals next week. Keep Burrow clean and let him work.
If not, the Texans are going to eat their lunch.