This is going to be difficult to explain succinctly without being outing but here goes.
An internal review has been undertaken of the way my team leader and her two deputies (of which I am one) carried out our work last year in a particular area. The report is absolutely scathing about the two deputies in particular. But it doesn't point out that neither of the deputies were involved in that area of work last year - that was another deputy who left. The team leader is also new to role this year.
The report compares the work with that performed by another department - apparently they did everything perfectly but my team leadership's work was awful. The report was unfair in quite a few ways. The people who wrote the report are in direct competition with the deputies for promotion, and the people who were interviewed want the deputy jobs themselves.
We had no right of reply and the report has now been shared with the wider leadership. My team leader has our backs at least. But what can I do? Is this something I could raise some sort of grievance about? Could my union help? I'm tempted to go off with stress which I've never done before. I'm so angry!