In the empty 3rd you put your nice new giant jumbo tron. Even have a smaller set of stands under it, similar to South Carolina or Ole Miss. Or do something like Mississippi State, although more 2 sided. Or put a building there like Southern Miss.

Heck, just tear it down. LES is ugly. It's just the setting that is great. Build something with close to 55k and all seats like Louisville. Build more suites. This is why you should have stadiums with upper decks. You sandwich the suites right in between rather than sticking them at the very top.