I think there could be a positive here - when has McD gotten in trouble as a head coach?
When he is overthinking in big spots, getting too smart for his own good. 13 seconds shell defense a prime example. Conservative offensive play calling in big spots, which I am sure he has a hand in at the end of big games.
If calling defensive plays gets him out of his head and into his gut or even lower regions (going for it on 4th down as much as he can!), this could be a good thing for him and the team in big games.
When this team is aggressive and plays with fire and doesn’t overthink, it’s one of the best in the league.