The Disarray of the Parliamentary Labour Party

There's a lot of talk but nothing ever seems to result from it about the possibility of moderate MPs breaking away in some sense. I think that it's been made a lot more difficult for the moderate MPs by the evidence of just how big the increase in membership since the summer has been. Is there any way they could play the Parliamentary game and simply announce themselves as the majority in Parliament as Her Majesty's opposition? "I find it very, very difficult to believe that that can be a possibility under the conditions of Parliamentary politics"