Well, since the right side is not nailed down yet, and the starting C has not played a down in the preseason yet, TBD for the regular season. Now the guys who did play most of the first half against the Seahawks allowed 0 sacks, 0 pressures as an entire unit, I would say they did fine.
BTW it was you who called out the Bears for moving on from Daniels, who you called one of our two best offensive linemen. The same Daniels who has totally sucked for the Steelers. So, let's not move the goal posts here, at least try to stay on tract.