> The article fails to address when the firing is actually wrong and incorrect. > > I work at anduril and I know of a new manager who 6 months into the job fired 2 people and had one person quit because he couldn't handle dealing with him.

You can't tell from "statistical significance" if a firing is good or not. Maybe those three people have needed to be fitted for a while. Maybe, as the article says, it comes down to job-fit and the three employees are great people in the wrong job.

There are bad managers. But you can't identify them solely based on numerical analysis of turnover.