The phrase "revenge reshuffle" refers to a situation where someone makes changes in a group or organization as a way to seek revenge or retaliate against others. Full definition
I'm not sure how revenge reshuffles sits with the new politics. (theguardian.com)
Whatever his supporters say, the revenge reshuffle does mark the end of the new politics. (politics.co.uk)
And Michael Dugher's article for the New Statesman warning against a «revenge reshuffle» seems ironically to have thrown him into the firing line. (politics.co.uk)