The Bears' offensive line has been one of the weakest spots on the team, we know this. The fact of the matter is, though, that they have gotten exponentially better since the right side has been solidified with Spencer/Louis. We spent a first round pick on Gabe Carimi and when he played, he played very well and was getting the job done but there is no reason to insert him back into the line up next week.
At this point I would argue the best thing for our offensive line would be two things; 1) consistency and 2) depth. We have finally gotten some consistency after the first four games of the season when injuries and bad play forced shuffling around, specifically on that right side. Jay Cutler has been sacked only three times during our two-game mini-streak and I think it's important to have some consistency and let the line be.
Carimi being healthy is more of a bonus than a saving grace. When he was injured we were one injury away from Frank "Gate 68" Omialye. Now we have the luxury of having options; if Spencer goes down you can slide Louis back over and Carimi step in at RT. If Louis goes down then Carimi can step in. If someone starts playing badly on the right side, it'll be pretty easy to get Carimi back in.
Carimi is a rookie and a good one at that, but he can benefit from watching and learning. He'll soak up everything that Mike Tice has to say and he can step in late in games when the Bears are ahead or maybe even on max-protection plays.
So, I say, for now, leave the line the way it is. It will be better in the long run if we can get depth and consistency going more than just throwing out our opening day line because that's the way it was and that's how it should be. Carimi will be fine, if the team hadn't been riding a mini-streak into next Monday's game my tune would probably be different but if it ain't broke, don't fix it and for once Cutler's jersey has been relatively clean for more than one game at a time.