Not nearly as worried about the oline as I was last season. I'm skeptical of Lewis at C, I personally think it's a terrible idea. I know that Yanda is a much better player at RG but I'd rather have him calling the protections. But that's whatever. I personally think if Siragusa is healthy he's going to surprise everyone and take over at C and we slide Lewis back to LG. Hurst was a truly overrated commodity even if he wasn't horrid. The tape and the stats back that.
Yanda returning should be a huge boost and I think Orlando Brown could be an immediate rock at the RT position if he's in shape. Stanley should start racking in pro bowls soon. Worst case scenario is that Hurst is a "meh" guard and that Lewis is a "meh" center. Which is fine. The oline as a whole has likely been upgraded.