My only problem with CJ is that I know after a 6+ yard run, he's coming out the next play. It's 50-50 whether he's showing signs of being injured. I would love it if he would sack up, man up and get pissed off for being removed.
That being said, I think the O-line is one of the worst O-lines in recent memory. From game to game, quarter to quarter, they're like a box of chocolates.