I would be on board with Trial Admins. I think they do that already thought.
A Trial Admin is someone who is basically being trained to be a staff member and use their tools effectively. They are given RC access with basic to minimal rights and higher ups take time to train and mentor the new trials. This can take up to a month, and in that point is lengthy and can be not as fun, but I feel it is a good way to weed out the people that want staff just for some popularity and will bring in more people that actually want to help other players.