Is it possible to have the employee waive his right to a wrongful termination lawsuit? A waiver seems to be a condition of many severance packages, although I'm not sure how enforceable it is. Could thorough and actionable analysis be treated as a form of severance?
It's not a perfect solution, but I'd prefer the option if I were in that situation. The expected value of a wrongful termination suit might be less than good career advice.