I'm sorry that I don't think a few anonymous testimonies from grunt level ex-employees is concrete proof that the Lerners are Boris and Natasha in disguise.
So you need current employees to stick out their necks and risk their jobs in order to believe their testimonies? That's a convenient way to disbelieve anything negative about the Lerners. For me it's going to take them doing something over several offseasons to improve and continue to improve the team so they can be perennial contenders. Anything less than that is failure.