Every coach makes small-scale mistakes, even the best like Bellichick.
But looking at the larger scale, there has been no reason to doubt McDermott.
No tension with the GM.
No tension with the press.
Good drafts.
Good team cohesion.
Humility and being willing to acknowledge and correct mistakes.
Think of all the past coaches over the last 20 years. In hindsight, we saw the red flags and hoped they'd work through it.
What large scale deficiencies are you seeing now?
To be honest, McDermott reminds me of Jauron, but without Marv Levy and Russ Brandon for GM. McDermott has an actual GM that he's aligned with.