16th in points given up per game, 16th in total points given up, and 18th in yards per game, and finally 19th in total yards.
It takes a special kind of stupid to think the Bills had anything BUT an average defense. Just about 100 yards (less than 10 per game) from being 16th in all of these stats; in other words, literally, dead center in the entire league.
So what the heck is average in your world? Or is this some type of alternative fact?