Don’t play the Korah card
I have been in a couple of situations where concerns were brought to a pastor who then likened the one who brought the concern to Korah attacking Moses. While I understand the temptation for a leader to deal with a complaint in this way, that temptation must be resisted. Not only is it inappropriate, it does nothing to fix the situation (unless of course the leader’s goal is to eliminate any other opinion than his own).