The powers that install these people want buffoons. That is exactly why these people are chosen. Not because they are 'excellent', but precisely because they are not excellent or acomplished.
Look at the array of clowns now ruling us. We have Obama who is, well, he is Obama, enough said. We have Biden who appears to be at least a little retarded. We have Clinton who is the wife of a philandering, lying, impeached, ex President. And we have Kerry who's only claim to fame is he married a Ketchup queen who herself became rich only because her husband, who actually made the money, died. And we have Boehner who seems to be afraid of his own shadow.
But I agree. If Obama had picked anyone other than Biden for VP, Obama would be long gone by now. Biden is Obama's insurance.
Brilliant scheme really. You have to give whoever came up with this wacko plan credit. It worked.