I'm talking O-line only.
Both tackles I think will be drafted, I don't think it's crazy to think that Jensen, Schoening, or whoever is taking the open slot gets a free agent shot like the elder Volson. I keep reading on Bville that the underclassman OT's are pushing Cordell for playing time and he might get moved inside.
If you want to talk the whole team, there are probably 8 upperclassmen who will spend some time in the pros on the starting roster. In approximate order of draft/free agency
Lance
Radunz
Jabril
Volson
Watson
Gindorf
Babicz
Hayes
Luepke
and thats ignoring some outstanding underclassman and the entire RB room.
2020 NDSU is going to be an absolute monstrosity of a team. Preseason GOAT. The only position of percieved weakness is a defensive line that was quietly decimated by injury in 2019 and full of underclassmen. NDSU is going full 2009 Boise State next year.