He certainly commands respect and gets his guys to play hard for him. He has the track record as a DC, time on his side, and with another Seattle SB run probably looking for his pay day and chance at a HC job. Not a bad deal learning from Pete Carroll as well.
You're absolutely right….he also has that glare like the chin had.
I remember when a Steeler made a mistake or dumb play, heading to the sideline, the first person to greet him was always this guy:
We need a little of that here.