I agree. Especially with the increase in gap, I think we need to make a competitive offer to both of these guys. Hopefully, we will not be outbid on BOTH and will at least be able to retain one of them.
If we had to choose between the 2, I think I would prefer to retain Wagner. I think Lewis could be a very good guard for us, plus he is an acceptable backup swing tackle. Then, Yanda (hopefully fully recovered) goes back to RG and we are only looking for one starter, Center, and a quality backup or 2. We really don't have a ton of money invested in our OL and we have Stanley and Lewis on the cheap for a few years....by the time they are ready for their big pay day, Yanda will probably (sadly) be gone.
I absolutely love Williams and between him and Pierce (and Jernigan, Guy), we have an amazing run defense. That being said, I think we are much better at finding quality interior Dlinemen (see Pierce) and I think we could "replace" Williams easier than Wagner. Also, I really hope we can keep Guy as well. I think he is a majorly underrated part of our defense (hopefully the rest of the league underrates him as well so we will be able to afford him)