I've always like the idea that the Olympic events should have one "normal" person do them, at least for ones where that is plausible and makes sense (like racing events, maybe not stuff like the giant slalom or the ski jump)
Like, if you had a 9th swim lane and put a guy who swims 3 days a week in there for fitness, I guarantee he'd get completely smashed in a way that would really illustrate how much faster the Olympians are.