2012 QB situation

I'm still trying to understand how the LSU QB situation will work or if one will leave even though they're spread out over 3 years for 2012: Jr.- Zach Mettenberger (Jr. college star when not in jail); Soph.-Stephen Rivers (brother of SD's Philip); and Fr. sensation to be, Gunner Kiel, one of the top HS prospects in the nation. I also wonder if The Mad Hatter will still have all of them running the option into eternity......