Are you daft or intentionally missing the point. Every time an offense has struggled under Callahan, under Pleini, under Solich, Frost, and even Riley. The coordinator had gone back, simplified the offense, identified the plays that worked best, prioritized those plays, developed a system around those plays and and boom, like magic the offense got better. It's almost like they realized the team they had wasn't capable of running the full system and so they scrapped the pieces that didn't work and emphasized those that did. There are quotes from every head we have had about having to do that to match the offense to the talent on hand. SATTTERFIELD REFUSES TO DO THAT.
In my example of Matt Turman that so clearly went over your head Osborn modified the offense with Turman at qb to ensure Matt wasn't put into a position to fail, largely by taking the game out of his hands and mitigating the chance for unforced errors.
Apparently you need to be walked through the difference between coaching the players you have verses failing to coach and blaming it on the players.