It's not just Munchak leaving but also an age issue. Our guys are starting to get up there. And the drop off from starters to backups is pretty severe. We've had seasons derailed when these guys were in their prime because of injury. Now we have ages 31, 33, 30, 29 and whoever our RT is across the line.
If we were grooming some talent behind it, maybe I'd be okay but Okorafor and Hawkins haven't looked all that great and the rest of the backups are "just guys" that are either very late draft picks, minimum salary veterans, or guys that have floated (and been cut) by teams around the league.
I've said this before this off-season. I am penciling in an offensive lineman as our 1st round pick next year. It's so apparent that this positional grouping is going to be a need next year that we will force picking it no matter what. Tight End is an outside chance if Vance McDonald gets hurt as well and there's a 1st round guy available but that's unlikely.