Reagan was a governor, of a state bigger and more complex than most countries. So, what’s the take away?
That Reagan did not micro manage California, nor did he micro manage or try to micro manage the country. He was a visionary in both offices.
And of all of those traits mentioned in your post, vision is far and away the most important. Management is a skill set you can hire. Vision is something you either have, or you don’t. Period.
I agree that vision is very important. But if you can’t manage the office, the vision will perish.
You are correct. Principles do not need to be managed.