It doesn't really matter if you agree harry, there is enough information to support it is more correct than not
My point is, if they lose, then part of it will be by being tainted goods and as we know once a brand is damaged in that way, something has to change and that is why should he lose, some new blood is a must.
They can go down the democrats way of blaming the opposition, it's Trumps fault, it's the russians fault, it's the hackers fault or they can act like grown ups and say, why didn't we get as many votes as we needed?
Possibly Corbyn is the last of the old leftist Michael Foot, Tony Benn generation left and this will be their last throw of the dice, should they fail then yes, a new course must be looked at with actual Labour heartlands brought back into the party rather than hipsters in London.