Under 60 is considered college back up caliber, 60-70 starter caliber, 70-80 above
average college starter( nfl possibility- late round or FA), 80-90 good player (nfl mid to late round draft or FA) and above 90 is elite type player (mid to early draft).

Seems as though BYU ( with Keim replacing Entienne) has an average middle of the road college starting O-line. I think this goes back to BYUs line being so good the last three years. I don’t think fans realized how good the line had been the last three years. I think a lot teams have issues like BYU is having with O-line, just look at Arkansas.