For Jeremy Corbyn’s army of zealous supporters, the past two months have not been a period of self-definition, of course. Instead they have been a period during which their hero has been under sustained attack from a feral press, treacherous shadow ministers and red Tory Blairite activists. But if you look at the list of things that have come to negatively define the opening months of the Corbyn era – the privy council row, the anthem row, the shadow cabinet appointments row, the John McDonnell IRA controversy, the fiscal charter u-turn, the ineffectual PMQs sessions – every single one of them is a self-inflicted wound. And every single-one of them could have been easily avoided by Jeremy Corbyn himself.