defense.
Adjusted defense efficiency is a much better metric of how well a team plays defense.
In that category, BYU ranks 139 out of 351 teams. So we are actually in the top half of defensive teams in the country and about 20 spots outside the top 3rd.
Now whether you consider that good or not is a different discussion but I find it hard to take criticism seriously from someone who has a bag-headed icon and uses statistics recklessly.