If Kerry boots McAulliffe from the DNC vault, the sharks will smell Bubba/Shillary blood. The sharks will be the same ones who have been swimming with Hillary all along. They've had that "Just keep swimming" attitude, knowing if they stopped swimming they'd be cast aside or eaten by the rest. Eventually that pack behavior turns on itself.
The next thirty days will either mark the Clintons or coat them in slippery teflon. I'm going for the mark. Eating the Clintons alive on national media shows will redeem the average Democrat, moving them to the middle, and making Kerry a more viable candidate. It will divert attention from the Massachussets Liberal label and make him seem like he's willing to take on tough, moral issues by gutting the Clintons. Sort of a "clean up our own house first" thing. Thus allowing him to do the same to Bush. Right now he can't touch Bush on issues of ethics, morality, integrity, and doing what needs to be done regardless of the pain. If he hangs the Clintons out in the wind, he'll attract a lot of moderates.