I don't think they're a good enough run team to keep any balance...but they're more explosive than any of the other likely 4 seeds. Explosive pass plays have given us the most problems the last two years. Pragmatically, I'd rather see one of the frankly more complete Big Ten teams that is a bit lacking in pure explosiveness.
Since it does appear that they're playing split safety man underneath, the sweep runs can be there if the linebackers are too tight. UDub should just run every down until they have to bring the safety down.