Put the directors and senior management into a catch-22.
Either they didn't know what was happening, and should have, and so are unfit to act, or they did know what was happening, and did nothing to stop it, and so are unfit. Either way, they get kicked out and barred.
Either they didn't know what was happening, and should have, and so are unfit to act, or they did know what was happening, and did nothing to stop it, and so are unfit. Either way, they get kicked out and barred.