I've heard of party-infighting, but this was a classic, I don't know why the MSM didn't make more of it:
Geraldine Smith said Mr Miliband was "trying to stir up trouble" and should get on with his job, adding that if he was sacked he would return to being a "nonentity" on the backbenches.
Rather than being a non-entity at the Foreign Office, presumably.
Via Neil Craig, here's a delightful summary of The Millipede's non-achievements so far (scroll about half way down).
They’re economically illiterate
7 hours ago