Blame everyone else for the falsification, and sue the pants off the whistle blowers – Harvard’s Francesca Gino, having been outed, plays the cards she’s got.
But once it turns legal, once you make it legal, you run the risk that a judge will decide Harvard’s investigation into your apparently quite extensive research misconduct (and hey take a look at one of your co-authors, Dan Ariely!) should go public.
So we can all read your insistence, in interviews with Harvard’s investigators, that a bunch of incompetent underlings did it; or, if that doesn’t work, a malicious co-author decided to sabotage you.