DB needs to learn along the way and apply what he learns. For some here he doesn't apply what he learns from trial and error, and makes the same mistakes over and over. He's not perfect, but neither is any given coach in the league, but he seems stubborn and arrogant for some of his philosophies for sure. He's has cracked that a bit here or there though, and has surprised us.
Treat this as another thing to just let play out, his own doing will make him longer tenured or a scapegoat. The life of a head coach, he'll be here one day and on another team, some day. When..? Ah..ha... Great question.
Until then. Good luck, DB. You've had your share of ups and downs.
Lets hope he has some more ups for his family, himself, the Pens Org., and us fans.
Go USA..!, Go Pens..!, Go DB...!