Older guy here, and alum. My user name reflects the fact I first became a Husker fan sitting on my grandpa's knee, listening to Husker games in he early/mid 60s...and remember hearing folks saying thing that made me think they were happy to have a winning season. So I remember both sets of glory years...the two in the 70s and those in the 90s. But I became a "love it to the core, this team is, and always will be MY team with the deflected two point try in the 83 orange bowl. I was a big fan of the stability and longevity of the entire coaching staff in those days as much as I was of the actual team on the field. It was all part of one program.
As for Frost, I'll echo what a lot of folks have said already. It is good to see him get some experience at a place other than Nebraska. A young coach like him, if successful at his first gig, is going to be a hot commodity, and want to leverage that spotlight to "take a step up". I think it would be ideal for us to have Riley for another 3 years, maybe 4 (if he can pull it together and get back to having good seasons), then open the door for a successful Frost to return home. He'd have gotten the "hot shot new coach" recognition and might be less likely to bolt in 2 - 3 years if he does well at NU. Maybe then he'd have a chance to put together somewhat of a stable, long term team of coaches here as well.
One can hope. I'd take him if he shows well at UCF for the next few years.
That is an old guy's opinions.
FWIW...welcome to the board, and to the Big Red family young scholar.