Middle managers like to set targets and goals because it counts towards their bonus, and it looks less like they've got their dick in their hand when the boss comes calling.
No one "needs" anything to do their job. A brief is helpful, a deadline is worth taking note of, but anything else is just interfering with people who are genuinely there to just do the job.
Most productive jobs i ever had? The ones where i was asked to do something and then allowed to do it.
As to the latter part of your message, it feels like you're just trying to process something so i think I'll just leave you to it. It's a bit too non-specific to respond to though.