Crazily oversimplified view of people. Just one thing you’ve missed: in addition to the axis of good/bad there’s an axis of experienced/inexperienced. Managers can be both good and inexperienced, in which case feedback is absolutely necessary to improve their lives and yours.
> Crazily oversimplified view of people.
Then proceeds to add one axis, getting the total up to 2! :-)
> Managers can be both good and inexperienced, in which case feedback is absolutely necessary to improve their lives and yours.
If they are good and inexperienced, I don't think they need to be taught that if they don't set priorities, they should not be disappointed when they realise that... no priorities have been set. So they are still good.
If they are bad "because they are inexperienced", then they are still bad. They should not be a manager. They can acquire experience without being a manager though, e.g. by having a manager in the first place.