This time it’s Joe Klein at Time Magazine floating the idea of Al Gore stepping in to become the Democratic nominee:
[L]et’s play a little. Let’s say the elders of the Democratic Party decide, when the primaries end, that neither Obama nor Clinton is viable. Let’s also assume—and this may be a real stretch—that such elders are strong and smart enough to act. All they’d have to do would be to convince a significant fraction of their superdelegate friends, maybe fewer than 100, to announce that they were taking a pass on the first ballot at the Denver convention, which would deny the 2,025 votes necessary to Obama or Clinton. What if they then approached Gore and asked him to be the nominee, for the good of the party—and suggested that he take Obama as his running mate? Of course, Obama would have to be a party to the deal and bring his 1,900 or so delegates along.
And why should Obama agree to this deal ? Why should a candidate who has won most of the primaries, a majority of the pledged delegates, and a majority of the popular vote step aside to allow someone who hasn’t even thrown his hat in the ring to get in front of him ?
It would be unprecedented in the history of modern American politics, and I don’t think it would go over well even it was Al Gore.

I agree.As much as we like, Gore it would make no sense and piss off many Clinton and Obama supporters.