If Starmer is to step down, one of the questions will be about what he will do next.To be a former PM is an odd thing. Business in the House of Commons moves on, but the agenda is no longer set by you. A new pair of hands takes up the reins with different policy ideas and style. You might even have to remain tight-lipped as the new PM - dealing with the weight of the office, acquainting themselves with Larry the Cat and a poky London flat above Number 10 - tries to make a symbolic break with the...