Right, good thoughts. But to be clear, I'm not saying any of these guys SHOULD go. Theoretically, you take a better job than the one you have.
In my mind these are the kinds of jobs I view as better than their current jobs. I did this activity based on the idea of Schiano leaving his job as D-coordinator here to take a (lesser) job as head coach of South Florida.
My thought was he's better than that and will get an offer this year or next year to coach a solid Power 5 team.
So, I did that same kind of analysis with every assistant coach. For example, Zach Smith could leave like Withers to coach an FCS team. But he shouldn't leave Ohio State just to take any job (like a high school coach or a slightly better coordinator job at a bad school).
Overarching point: OHIO STATE assistant coaches have it good! Stay here until something obviously better comes open.