Prefer type of coach? An offensive, A defensive, or a middle guy?

There're really not many head coaches who succeed that aren't X's and O's guys. Maybe John Harbough and Dan Campbell? You look at all the other head coaches of the top 10 most winning teams, and almost every single one has a play sheet in their hands except the two forementioned and Todd Bowles.

Right? Am I missing any others? Mike Tomlin maybe?

Anyways. Taking a special teams coach, who rarely ever coached offense or defense gives me pause. I really want to like Rizzi because of the fire he brings and how much he elevates those players to play. But it's going to be extremely hard, next to impossible to keep a good DC and a good OC year in and year out for him. They'll get poached year after year.

At least with, for example, Andy Reid, or Sean Payton. You not only have a guy that is a leader of leaders, but also someone who's running the offense so you really only need to worry about a good DC.

I mean, can anyone name a career special teams coach that became a head coach and found success more often then not in the NFL? Anyone?

Even the forementioned coaches were defensive or offensive coaches prior to becoming a head coach.