All you Huddlers are stressing out when you don't need to stress out. I'm pretty sure that if the common Huddler was able to come to the conclusion that our OLine depth is virtually non-existant, then I'm sure a mastermind like Dave Gettleman himself has realized that and has multiple plans and ideas on how to resolve this issue. He gets paid to be a good GM, and he has yet to prove otherwise.
Last season, our biggest depletion was our secondary. Don't act like it wasn't a problem. If Peyton Manning had some arm strength left in him, our secondary would be torched. I mean we had guys like Finnegan who literally was pulled from his couch during retirement, and McClain starting. Dave pretty much wrapped up depth in the secondary with this draft. I'm sure he has plans for the OLine too.
All in all, our weaknesses would probably be strengths for many teams. We have exceptional depth at many positions, and a bunch of teams would kill to be in a situation we're at. FA's will now start to want to play for the Panthers, and we'll become something solid for years to come. Gettleman will keep looking for those rusty gems buried deep in the draft and FA, and we'll continue winning.
TL;DR: Quit your whining and let Gman do his job.