The OL struggled last year at times but down the stretch the five they had were playing quite well in both pass pro and run blocking down the stretch. What changes do you want to see from the starting 5? Interior backups will look different but I am good with Dawkins, Bates, Morse, Williams, Brown as starters. I think they still have to tender Bates.
Morse and Williams have decent cap numbers you could move on from but you also create a hole by doing so. Williams stays because he can play tackle in my opinion but I would not find it shocking if they moved on depending on who they want to sign in FA. Bates also has versatility. In short, I think they need to add younger guys to develop inside like they did last year at tackle but OL is not a huge need.