Well, your professor is just trying to pass as many people as possible to make him/her look good.
I should have mentioned this earlier, but he doesn't seem like the type to do that. He's 10-yeared, so he doesn't have to worry much about being an incompetent professor. Plus, he's mentioned several times that he thinks professors who don't do their job should be fired, regardless of the number of years they've been there.
He does like to make himself look good though. He's his biography:
Dr. Steven Shulman is a child prodigy who received his Ph.D. in 2006 at the age of 13. Since then he has taught at Colorado State University, where he is known primarily for his ability to irritate almost everybody. His thousands of publications all discuss supply and demand, or in other words, demand and supply. Despite his nomination for the Nobel Prize, the Department of Economics continues to deny him his basic human rights. In his spare time he is a Zen master, a jet pilot, and a breeder of exceedingly small, loud dogs. His wife and son deny that they know him.
lol.