I say a little bit of both. Keep the whole idea of the Hell Games but take a step back and start fresh. Instead of simply trying to patch things up, re do everything that is wrong. And this time, test it out extensively before hand, not with a couple of people, but do an entire game to make sure it works. Even run a couple of games to be safe, remember, you have only one shot to get it right. (Until the next event) Try to plan everything out better, get everything done early and it will help you be better organized and would result in a better event. Personally, I thought the event was not as bad as everyone made it out to be. Sorry if I come off harsh, I am only trying to be constructive.