In a way they are similar to how we pick our local candidate for MP at the end of the day the local party chiefs and central office get who they want even if all local party members get a vote. It is engineered that the person that they want becomes the most viable candidate.
The Three Co-Chairs of the DNC Delegate Credentials Committee All Served in Clinton Administration.
Alexis Herman,James Roosevelt, Jr. and Eliseo Roques-Arroyo. http://www.buzzflash.com/articles/editorblog/036