alt Hacker News> Well, I'd argue the system failed in that the bad person is not removed.
This is just a proxy for "the person is bad" then. There's no need to invoke a system. Who can possibly trace back all the things that could or couldn't have been spotted at interview stage or in probation? Who cares, when the end result is "fire the person" or, probably, "promote the person".
I think as an employer you would prefer not to hire another person that is not productive.
Your customers would prefer to have the enterprise doing stuff rather than hiring and firing.