I worked at Walmart Technology. I bravely wrote post mortem documents owning the fault of my team (100+ people), owning both technically and also culturally as their leader. I put together a plan to fix it and executed it. Thought that was the right thing to do. This happend two times in my 10 year career there.

Both times I was called out as a failure in my performance eval. Second time, I resigned and told them to find a better leader.

Happy now I am out of such shitty place.