I don’t know what form it would or even should take but these kinds of “Performance Improvement Plans” where the person being coached is set up for failure needs some kind of alternative that incentivizes employers to either responsibly dismiss the person or otherwise be genuine with “performance improvement”.
These tactics are hard to prove if someone goes to court over it (probably) but are just as hard to recover emotionally from and can stunt a person all the way to their next job or many.
So when you see those impossible job descriptions that no one can possibly meet, that is your cover. It's not fair, but sometimes you just don't fit in and the team has to get rid of the fly in the ointment.
These tactics are hard to prove if someone goes to court over it (probably) but are just as hard to recover emotionally from and can stunt a person all the way to their next job or many.