Michael Hirsh makes the case.
[I]n terms of the sheer number of issues Biden has influenced in a short time, the current vice president is bidding to surpass even Cheney. Fiscal issues and guns are only a small sampling of this vice president’s portfolio. Back in 2010, it was Biden’s office that, in the main, orchestrated the handover to the Iraqis. It is Biden’s view of Afghanistan that has, bit by bit, come to dominate thinking inside the 2014 withdrawal plan. On financial reform, it was Biden who prodded an indecisive Obama to embrace, at long last, Paul Volcker’s idea of barring banks from risky trading, according to Austan Goolsbee, formerly the head of Obama’s Council of Economic Advisers. The VP also tilted the discussion in favor of a bailout of the Big Three auto companies, according to Jared Bernstein, Biden’s former economic adviser. “I think he made a difference in president’s thinking," Bernstein said. "He understood the importance of the auto companies to their communities, and throughout the country.”
We've got four more years of chances for smilin' Joe to return to full form and thoroughly marginalize himself. Probably best to hold off on the bold predictions for a bit.