The Pac-10's Tom Hansen, the longest-tenured Division-I conference commissioner in the country, will retire next summer after 26 years on the job.

"When I started there in the 1960s, it was the Pac-5, Pac-6, then Pac-8," Hansen said in a phone interview Monday. "Then, in 1978, the Arizonas came in. I've seen it grow so much."