That's for the post. Though many of your comments/ideas are different than my own, I enjoy reading everyone's insight. My one major problem is with your O line ideas. Flipping Glenn and Henderson won't help anything IMO. Though he did regress, Glenn and a decent year filled with subpar QB play and little to no help from the OC. I wouldn't expect a mere flip of the line to solve anything. Glenn will be fine where he is.
As far as Wood, he obviously struggled. However, he was playing next to below averag talent on both sides. I think he'll be okay as well. Give him some real guards to work with and it will undoubtedly improve his play.
Guard needs to be addressed through FA and the draft. If you want a center, like you suggest, it would need to be early (2nd) if you're planning on him starting and kicking wood to guard. I would rather see Wood stay put, a third round guard and break the bank for Iupati this offseason. A man can dream