In an ethics crisis, it is not enough to know what happened; you need to know why it happened. Most organizations can survive a single ethics crisis. But if the same conduct is repeated, even if by different individuals, this will fix the negative impression of the organization in cement. Organizations tend to want to keep changes to a minimum, as big changes seem to be a further admission of culpability. But you need to be sure that you have changed personnel and systems sufficiently that the same conduct does not recur.