Oliver should be traded for a good starter at Guard or RT. Surely there is someone around the league that can be had. Throw in a draft pick if needed to make it happen.
I would consider trading Tre White
This team needs to pour resources into the Offense.
Ideally we find a way to significantly upgrade the Oline at LG and RT. Along with drafting a plug and play Center.
We also badly need a dynamic threat at WR2
It's very clear that the current offensive line is simply not good enough.
Unfortunately, I don't expect Beane to make many significant changes.
But, I believe they are needed. Here is what I would do
1. ) if Orlando Brown hits the market, try to sign him. (Unlikely & $$$)
2.) Trade Ed Oliver for an All Pro Guard. (Let Saffold walk)
3.) Draft a C in the first three rounds. Hope that he's comparable to Creed Humphrey (Release Mitch Morse - Concussions + cap savings)
4.) Ryan Bates starts at RG. Try Spencer Brown at Guard as depth (I know he's taller than most Guards, whatever)
5.) If #1 doesn't happen - Trade a 2nd Round pick (23 or 24) for a very good RT OR Draft a RT in the first two rounds.
LT - Dawkins
LG - All Pro via Trade
C - Rookie top 3 rounds
RG - Bates / S. Brown
RT - O. Brown / Very Good Starter via Trade / Rookie top 2 rounds
I think it's absolutely critical to add at least 1 high caliber player to the OLine