Player A has won 6 Super Bowls, multiple MVPs, owns numerous records, and is generally considered the greatest player at his position. Player B is a slow rookie who got hurt. Somehow player A is at fault for player B. Got it.
As far as a "healthy run game" our plodding RB just had yet another surgery. Our best lineman may be traded by week one and our starting center's status is still not completely clear. If we are going to rely on our run game I assume instead of winning 6-7 games we win 3-4. This isn't 2001. The NFL is a completely different league now. It is designed to cater to the passing game. In 2020 NFL the pass sets up the run.