In WA the voters ran a state initiative to establish a state primary, which was done and the state pays for it. But the WA Dem party refuses to consider that, they insist on using their caucuses instead.

So there must be some pretty heavy power structure in there, which it may not be practical to change. You might have to work your way up within the caucus system to get to the decision making level.

What we can do, is show the difference in results (caucuses 75% Obama, primary 50%) to the Superdelegates, and let them make their judgement about who the voters of WA really want.