In my opinion, the absolute BEST thing that could happen this Saturday is for Harton to have a coming out party to the tune of 150+ yards and a TD or two. Then (and don't string me up when I say this) give Harton the start against Auburn and at least let him play the first quarter and make IC sit on the sideline and sweat about losing his starting job. Don't suspend him for a quarter like against Vandy...in fact, don't say a word to him about starting status, depth chart, etc. Just make his arse sit there and wonder why he isn't playing.
You can see it in his body language on the field from time to time, he's about one "SEC player of the week" award from being a complete diva with a giant sense of entitlement...suspending him for a game against a cupcake team will only teach him so much. He needs to legitimately fear for this starting role...