That’s a lot of presumptions. It may be as simple as noticing that teams with a higher attrition rate are more productive on average and faithfully treating that observation as a causal link.

It may be successful in the short run, but that doesn’t make it a good long term strategy. It may be a good long term strategy but that doesn’t make it ethical.

To the thought police: notice how I engaged the parent in a thoughtful argument instead of moronically hitting the downvote button.