TGHusker
Heisman Trophy Winner
After quick internet stalking for Bill Busch's bio, it looks like he married his current wife in 2019. This is likely not the mother of his children, so his children probably live with the mom in a more stable environment. Busch's new wife probably accepts the nomadic lifestyle of a D1 football coach as a tradeoff for his annual salary which is in the mid-six figures.
Here is a good reason he is coming to Lincoln:
https://nebraska.rivals.com/news/nebraska-names-former-lsu-and-nu-assistant-bill-busch-defensive-analyst
The other connection that brought Busch back to Nebraska is his wife lives in Lincoln full-time, and both his parents reside in Creighton, so taking a position in 2021 under Frost makes sense for a lot of different reasons.