Politics: shake-up on Kerry Street?

I can't say I'm a huge fan of Mary Beth Cahill, and I think Kerry has blown lots of opportunities to draw attention to things that matter by talking so damn much about his Viet Nam record (and subsequently, his anti-war record... which no doubt some Bush surrogate group will hit on the head over and over again come late October), and the campaign is pretty sluggish to defend itself properly, it's still not a good omen when these sorts of rumors start going around. I remember when Howard Dean was doing the same thing after Iowa, and we all know how that turned out *cry*.