The people calling for Marcus Freeman to be a NFL head coach are delusional.
He has no experience as a coach in the NFL, even as a position coach or coordinator. In the impossible situation where he took the Bears' job, he'd inherit a team that has a lot of deficiencies, and has an utterly deflated morale.
He's in a great situation right now at the Golden Dome, where he has a well-stocked roster of excellent talent, along with having won over the hearts and minds of the ND fanbase (not easy to do). That, plus he just signed a very nice extension. The players absolutely love the man, and would run through a brick wall for him.
He's not going anywhere.