How bad has the offensive line been the second half of the season.

From the stats it seems like they are doing much better. Cassel has fewer sacks and J. Charles is getting some big runs.

I havent been able to see the games in the second half of the season. Has the OL gotten better, or is the team working around the bad OL. Im sure they are not leaps and bounds better, but it seems like they have shored up some of the big holes.

I almost wonder if we need to revamp the whole OL?