2. Bring in an Expert
Often a third-party voice will give you credibility and support you could not otherwise gain inside your organization. Further, a recognized industry authority lends gravitas and weight to your claims.
Number two really bums me out. I know, no one is a prophet in their own land, but to rely on outside consultants for validation is pretty weak. There are many times where an outside voice will bring a fresh perspective to a problem, or to offer guidance and wisdom to initiatives already taking place. But if a district has to rely on outside experts to validate what their own employees are saying means there are some system failures already taking place.