A lot of smart posts on this thread. I tend to agree Trump needs someone in his inner circle who knows how to navigate the beltway. When draining a swamp, you need an alligator wrestler.
That said, perhaps there is some confusion (including in my own head) about the Chief of Staff’s job description.
His main functions are to oversee senior staff, control the President’s message, control access to the President, and negotiate with Congress. Priebus is probably better suited for this than anyone else in Trump’s inner circle, no matter what this jackass Clintonite Chris Ruddy thinks.