What are the lessons in the fall and rise of Louise Haigh?

Louise Haigh is a key figure in Andy Burnham’s team and will be back in the cabinet next week when Burnham becomes Prime Minister - a remarkable comeback given she was sacked as Transport Secretary only months after taking up the post. Haigh was widely admired during her brief period in the job but was targeted by Number 10. Now those who targeted her are gone, and she is at the centre of the new…