My approach to management is fairly simple. Hire the right people, train them appropriately, continue to train them, and then let them get on with their job.
There is only one management decision that matters, that's when you hire the person in the first place. If you mess that up, then you have to have the nuts to admit you made a mistake and get rid of the person. So many managers hire the wrong person for the job, then spend the next couple of years failing to admit it. Their solution is to then micro manage someone into therapy. It always ultimately fails, and seldom is the manager (who has spent all his effort making sure he doesn't look bad to his managers - who are also failures because they fail to engage) brought to account.
Micro management doesn't work. If you have to do it you've got the wrong person working for you.