Part 2 of this investigation should be "whose job it was to check new principal's credentials and and how they profited from looking the other way" That really

Part 2 of this investigation should be "whose job it was to check new principal's credentials and and how they profited from looking the other way" That really shouldn't be taken as a given. "Never attribute to malice what can be adequately explained by incompetence." Or by laziness, overwork, miscommunication, etc.