Now this is interesting.
For example - where did you get that I PIP'd over 20 people? Because I not only never said that, it never happened.
Of the dozen I did PIP, over half were handed to me in re-orgs, and had been persistent performance issues that the prior manager never addressed. Such is corporate life.
And all of those dozen I handled directly. There were a few in time that subordinates handled as they came up later, but I forgot to count those in the total. All I would do in those cases is ensure they were doing the right things - I wouldn't ever make the call, as it wasn't mine to make. They don't meaningfully impact the overall numbers though.
And there were a lot of non-PIP performance discussions too of course. For instance, I had a manager I took over that was burnt out and performing badly due to a really legally dangerous performance issue from someone MY boss had insisted be given a chance. I didn't PIP the manager, we talked about it and I helped him find a new team where he could get some new scenery, and my boss took over the performance problem.
Regardless, only 4 of the 12 ended up being fired. Which is what, 2% of the total number of folks? Even doubling that, over 10 years that is amazing. The rest improved performance wise. Several of them even thanked me. Bizarrely, the really difficult case I talked about was one of them.
Near as I can tell, no one had ever held him accountable for his actual performance, because he had previously kept succeeding at getting people to blow up at him.
Show me a place where that is a bad stat, and I'll show you a place that is lying through their teeth or delusional.
And hey, I got PIP'd once too. Personal issues that bled over into professional life. It sucks!
My manager was right on with what the issues were though, even if he didn't do most of the actual best practices. I ended up making some major life changes personal wise to deal with my issues as well as transferring to a different team as my managers style was not a good fit for me either, and had another 3+ years of productive time in my career there (and got promoted). We still chat from time to time.
Ciao!