Just my opinion, but I think you have enough raw material left in the OL Depth Chart to make this work.
The bigger issue is getting someone competent to teach technique and Tackle-specific S&C that prioritizes foot speed over brute strength.
LT - Prochazka / Banks / Transfer?
LG - Lutovsky / Miller
C - Piper / Hixson
RG - Nouili / Bando
RT - Corcoran / Benhart (I see him as more an S&C project than anything else)
I would add that Hutmacher is the only wide body left on the roster I've noticed at NT and we all saw what happened to to our run defense when Daniels was injured....so as much as prioritizing improvement in the OL is important, with the make-up of the Big Ten West, we can't attempt to fix the OL by gutting our run defense. With Daniels leaving, I'd really love to see Chins go and snag a Vince Wilfork-like kid from the transfer portal with the express objective of being able to hold their ground against Wisconsin, Iowa, Minnesota double-teams....as we all know they're coming.