No, the crystal ball that LSU has says they were the better team than USC in 2003. A win in 2010 would prove they were STILL the better team and leave little room for dispute by the West Coasters.
It doesn't prove that at all. All it'd prove is that LSU fielded a better team than USC in 2009. Like it or not (I can't stand it, as I'm a UCLA fan myself), USC has skins on the wall between then and now.
Aside from maybe a handful of coaches on both sides, nobody remains from those '03 rosters