As do all successful people. If success were easy, everyone would be doing it.
For all the ways I disagree with Ballmer, this seems like a poor choice to point out.
Failures are acceptable if there is ultimate success, what is Ballmer's success? Retiring rich? (Most of which was accomplished on Gate's stewardship.)
Perhaps his name could become a unit for excess inventory. The "Ballmer", 500 cubic metres of unsold goods.
EDIT: or perhaps the name of a new airplane seat, "The Ballmer" the only chair to fly in!