I agree, man.
Keyshawn Greene could have been a big difference maker, and Betts has been a loss. Morrison kind of got lost in the shuffle and wasn't standing out, sort of the same potentially with Fleming. The two DB's don't hurt as bad in my opinion.
But you're completely right on how it takes down the averages. We'd just have to have a metric to compare that attrition against some kind of national average.
I'm going to say that Greg Austin & Frost did a terrible job with the O-line, special teams has been a disaster for three seasons (outside of some better field goal kicking in 2020), and we generally just seem to buckle when the game is on the line. In terms of the roster we fielded last year we absolutely should have won at least 6 games.
I don't buy any kind of narrative the our roster last year on paper screams "this was a 3 win team."