Comment by shiroiuma

>A friendly average person would have been a net gain.

I'm perfectly happy to have a friendly, average person as my boss, as long as he has good people skills and is pretty good at managing a team. He doesn't need to be technically brilliant at all.

By contrast, working with a boss who's a technically brilliant jerk is an absolutely miserable experience. Companies that make a habit of promoting brilliant jerks into management positions should be avoided.