I was wondering the same thing last night and actually went through the roster to see the most likely line-up. It could get real scary, but there is potential there.
Tackles - Kallenberger and Plumb, Endres or Miller.
Center - Linderbaum (no-brainer)
Guards - Britt and Ince, Banwart or Schott
Kallenberger is playing out of position this year. I fully expect him to start at one tackle spot. The competition for the other spot will be interesting.
At guard, a wildcard is Jenkins. If he bulks up over the spring and summer, I could see him making some noise. If not, I could also see him in the transfer portal. Really liked his tape in H.S. but for whatever reason, he hasn't made that leap yet.