IQ of 148 here (not that I put much stock in it). Ballmer is an idiot. What he lacks in idiocy, he more than makes up for with... lack of leadership, lack of charisma, lack of ethics, and just raw lack of coolness period.
Anyway, that's what I thought BEFORE I read the article. This article is actually pretty awesome! And points out some good things about the guy. I like him a little more now. Nice work, Medium!
One thing I would note is that sticking with 1 company for a long period of time is not necessarily great. You (and the companies you switch among) can learn a TON from each other if you move around a bit. There's even studies that show this (your value to a company is largely exhausted after 2 years).