I accept Corbyns age is irrelevant my bad.
Still doesn't get away from the fact that the left have to get the right out of the PLP, the longer they don't the riskeir it gets.
But if they do they are doomed.
A political party with the potential to win sufficient votes for power will necessarily be a reasonably broad church because so are the electorate.
So if the left of the Labour party got rid of the right it would cement itself as unelectable - as effectively a narrow protest group condemned to opposition.
It is interesting to note that Blair never moved to deselect Corbyn, or Skinner or Benn (senior) or others on the left of the PLP. He recognised that for the Labour party to win it needed to be sufficiently attractive to voters from the left and the right of the Labour political spectrum.
But I'm unclear how Corbyn would be able to achieve this anyway - while he can 'sack' his front bench team he can't really sack his MPs - sure he could suspend them from the party - but on what grounds - rebelling? Remember he rebelled countless times. He can try to get the MPs deselected, but that requires local parties to play ball - and guess what they are often rather fond of their sitting MPs. Or to massively change the rules to remove power from local parties - and good luck with getting that through the party processes and also achieving it without haemorrhaging of membership.
He can, of course use the time-honoured approach of persuading some sitting MPs to retire (probably with the promise of a seat in the HoL) to get rid of his 'awkward squad' - but while that works when your PLP awkward squad are a few dozen MPs and your supporters are in the 100s (as was the case for Blair), it won't work when your supporters are a few dozen MPs and your awkward squad (i.e. those who didn't support Corbyn in the PLP) are in the hundreds.