That's yards before contact per carry. That is how many yards the RB gets before getting hit, often a good measure of an O-line. They are actually 13th in the league, which is good. Where are we on that list? 31st which is terrible.
If you look at YPC they are 3.9, we are 3.5.
2021 NFL Standings & Team Stats | Pro-Football-Reference.com
and I already listed just the RB stats.