I have a suggestion for every server. I think there should be a wall with all the staff members on it in spawn on every server. It will make it more clear who are staff members etc. For example: someone needs help on survival, at that moment there is no staff member online at survival. Maybe one of the staff members is helping someone at a different server at that moment. The player can go to spawn and check some names. He can write them down and look on the other servers if he sees one of them there. That way he can get help too.