And this one where she describes how he blew a media opportunity for coverage for Labour's rail transport policy, thus wasting hundreds of hours of his people's work:
"On 4 January – a cold dark Monday morning – I was at Kings Cross at 7am doing Radio 5 and BBC TV.
Standing with Jeremy and the Rail Union General Secretaries for the media photocall. It was a crucial day in the Party’s media grid.
And all across the country local party activists were outside railway stations in the cold and the dark, leafleting commuters with the materials we’d prepared. Armed with the briefings and statistics.
Incredibly, Jeremy launched a Shadow Cabinet reshuffle on the same day.
This was the reshuffle that had been talked about since the Syria vote a month earlier. A vote where I supported Jeremy’s position.
The reshuffle that meant all our staff spent Christmas not knowing whether they'd have a job by the New Year.
By mid-afternoon the press were camped outside the Leader's office. They were there for the next 3 days.
It knocked all the coverage of the rail fare rise and our public ownership policy off every news channel and every front page.
I respect completely Jeremy’s right to reshuffle his top team. But why then?
It was unnecessary and it was incompetent.
It let me down, it let my staff down but most of all it let down the Labour campaigners and trade union members, people like you, who had given up their time to go out campaigning for us that morning. "