I'm having trouble understanding this logic, but maybe I'm just too stupid to understand this reasoning.
Hillary has a big problem in 2008 as things now stand. If she runs far enough left to satisfy the moonbats in order to get the nomination, she won't be able to get back to the middle.
But by letting the moonbat's spokesman (Dean) run things for two years, if he craters the party in the 2006 elections, it will discredit the ability of the moonbats to win elections - they think Dems don't run leftward enough. The Clintonistas want them to fail so they will be willing to toe the party line in 2008.
If you remember that, for the Clintons, Hillary's bid for the WH in 2008 is everything. This way, they get full control of the DNC for that run, when Howie is tarred and feathered after the 2006 elections.