Because there is a recruiting department flush with cash but there is no retention department. Retention is dumped on some engineering Director who dumps it on

Because there is a recruiting department flush with cash but there is no retention department. Retention is dumped on some engineering Director who dumps it on their engineering manager. Then it becomes a matter of report <-> manager rapport and the skill of the manager. How many of us have seen incompetent managers? Yeah, they are not going to be good at retention either.