I absolutely love the staff that was hired AFTER Shottenheimer so not sure why you pooled the whole bunch with Shotty in my description. So this reply speaks of only Shottenheimer:
Why exactly do you think he is not a poor choice considering he has done nothing that screams HC in his history and there were better clear cut choices for HC available? Did you like his speech, that was hijacked by an egocentric owner who obviously views him as nothing more than a puppet?
That being said, I would absolutely love it if he proved me wrong and he became someone that could take this team to the next next level. Maybe, but it will take a WHOLE lot more than talk but actually getting to the big game to convince the majority of Cowboy fans.