The latter here is spot on. It's possible, not impossible, but definitely not probable.
One caveat I would insert here is that the right "fit" guys, including Nebraska kids, will never be as highly rated. The high ceiling guys and overlooked rough diamonds in the midwest that don't go to the Rivals and UA Camps wont get a 4th *. Frost has stated what he wants to do pretty clearly, and that basic philosophy is at odds with this notion that NU could (or should) be trying to "win February". Not impossible, very possible, not probable. No mistake, these guys are going after really good players, many who will be higly rated, but they aren't gonna waste a lot of time chasing shiny objects, IMO.
I know I'm probably an anomaly these days, but if Nebraska is TOO highly ranked, I'd argue the staff probably isn't doing it right. As long as we are in the top 20ish annually and getting enough difference-makers along with our system players...I'm glad to let astronomers elsewhere do their thing.