Can't remember who exactly, but there have been occasions where elderly MPs have agreed to give up their seats for a move to the house of lords trough (perhaps Tories?). Looks like Burnham very much wants to be leader, but it's not clear what the ideal route for him is. If Labour lose Batley and Spen - which I'm not convinced they will - it gets pretty close to a 'get Burnham at all costs' scenario I'd have thought. I mean from Labour's point of view, not mine.
Hard to tell how Burnham would be as leader. He'd have a fair wind behind him in the party and he'd probably perform well against Johnson. A lot less dull then kieth, but that's not saying much at all. Politically, a return to something like an Ed Miliband position on some mythical left-right Labour continuum. But exciting? New ideas? Nope, not at all. Labour need to get rid of kieth, he looks like clubbed seal at the moment (and the boring clubbed seal that nobody cares about because he's boring). But Burnham ain't the answer, Labour's problems run a lot deeper.