People respond to feedback.
Positive feedback produces positive reinforcement; you'll get more the next time.
Negative feedback produces negative reinforcement; you'll get less.
Stop and think what kind of day-to-day feedback the DP workers get.
From PG they get very little or no feedback.
From DP they get little or no feedback, and when it comes it's weeks to late.
They're wandering in the wilderness, and they know it. But hey, no one
seems to care one way or the other about how they did what they do,
or want to help them do better; so the ones that stick around,
please themselves. No one else notices.
They're going through another phase of RST despair right now. They aren't
getting out what they thought they are putting in. Things break. But they
are supposed to keep trying to make the system happy. They know the
system isn't trying to make them happy. That's not its job.