As good as Snyder is, Nebraska fans would not accept his results at NU. Since his return to K State in 2009, he's averaged 4.63 losses per season. That won't cut it.
In a parallel universe where Snyder is coaching NU, the hope would be that he could attract more talent than KSU and thus win more games. If he used the exact approach he uses at KSU - recruit the same JUCOS and scout the small towns for "diamonds in the rough," I don't see how he'd achieve anything better than KSU-like results.
Osborne is one of the greatest college coaches of all-time, but it was the influx of talent that took him from winning 9 games to winning 12 or 13. It took Gill/Rozier/Fryar to get to the title game. It took Frazier/Phillips and Frost/Green and more talent on defense (Wistrom, Peter Bros, T. Farley, Mike and Ralph Brown et al) to start winning titles.
In both those eras, there was also obviously stellar O-line play. It's the "pipeline" that so many fans seem to think would magically return if we just had a Nebraska guy dong it Tom's way at the helm.
It seems like Bo and a staff of Solich guys (including an ex-Husker lineman coaching the OL) with Tom himself as the steward at AD would have been perfectly positioned to recruit and develop local O-line talent like the glory days. And yet, not one consensus All-American lineman and very few All-Conference performers were recruited or developed during Bo's tenure.