re: What is the one reason why CLM did not play Harris Earlier?

I haven't been to any of the practices, but he probably thought AJ would not be as likely to turn it over, even though it was AJ's first SEC start. Manage the game without mistakes! That's what I think Les thought. Think he is shocked that OLine can't get the job done. Probably had good practices last week and thought the OLine was going to come out strong with full stadium behind them. Didn't happen! Harris certainly did well against 3 man rush. See a lot of potential with both QBs and will pull for each of them. Long season, so will definitely need 'em both.
Schedule actually works out well to work on some adjustments this week, before they hit the Plains of Auburn.