Look, you're not totally wrong here.
My whole NFL team success philosophy is based on a 60/20/20 split of responsibility percentages between GM/HC/QB1.
There are those that will always come back to blaming the GM fully because he hired the HC and drafted/acquired the QB.
That's where I'm different. And specifically in the ecurrent Cowboys team landscape.
I don't hold Jerry responsible for his former SB winning HC absolutely sucking as a Dallas Cowboys playoff coach.
Nor do I hold him responsible for his runner up MVP QB absolutely sucking as a Dallas Cowboys playoff QB.
If you want to talk the rare HC/QB duos that could win in spite of Jerry, that's a different conversation.
BUT Jerry does bare the majority of blame as my opinion describes.
But like you said, not all of it.
jmo