You’re right my earlier posts didn’t cite evidence—but the games this year have. Well-coached teams don’t average 10+ penalties, don’t implode on special teams every week, and don’t have players constantly demanding trades or getting released. I don’t think I’ve ever seen a player on IR traded for a pick swap until now. They also don’t give up swing-pass touchdowns in a prevent defense with two minutes left—only saved because the runner stepped out by a third of a shoe.
Rather than telling me why my evidence is wrong, feel free to point out some actual examples of good coaching here.