The biggest issue right now:
https://www.verbalcommits.com/schools/north-dakota
Just look at all of that gray that left. Your Upperclassmen were basically: Panoam (JUCO transfer that didn't get a lot of minutes until midway last year), Igbanugo (walk-on but found himself in the rotation more when Sather got here), Sueker (D2 transfer: solid, but got hurt this year), Danielson (HS Recruit, who was a reserve for his 2.5 years before taking to the starting lineup out of necessity), and Nero (transfer from Weber State: solid, but got hurt this year).
This isn't a knock against these guys in no way shape or form, they went out and played their hardest and gave it their all. I'd argue Sather has gotten the most out of Panoam, Igbanugo, and now Danielson.