That should actually be #7, I think - I'll add it if I get the chance. I started off like the person you describe, and I have since moved pretty far in the opposite direction.
I've not yet been in the management position, but I definitely don't think it's an easy thing to do. It requires the loss of some control, and putting your neck out on the line, but when you've hired the person equipped for the job, it's ultimately best.