Whilst I agree that some of the suggestions in this thread would help, I feel the only way to really improve these events is to bury it as deep as you can.
Then use some of the respected forum players to offer advice and work as a team to deliver a new fresh concept.
Only when the event is fair to all clubs and based on skill rather than buying a win, will you rejuvenate most clubs and players willingness to play. Then reward the CC's by having something tangible (like credits for a bank feature) rather than the lame ill thought prizes that currently are the so called carrots.
The original concept was along the right lines, just thought out by a first graders intellect. Add to that the unwillingness to listen to complaints, you have a lemon that will never taste sweet.
Perhaps a rethink on CC levels could help to, as that is a road to no-where.