Who will be the next puppet?

Maariv is reporting that Palestinian "Prime Minister" Qurei is planning to resign along with the entire cabinet. Apparently, they think that this will pressure the US to change its position on Sharon's withdrawal plan. The question is, then, what happens next with the PA. Arafat could appoint a new PM, but as Dennis Ross has said many times, a third PM will not be taken seriously by anyone in the world. Not appointing one would mean going completely against the Bush Administration's demand that a new leadership is necessary. It seems that Sharon has managed to destroy the PA, without actually having to kill Arafat and without any real protestations even from Europe