SAN FRANCISCO (AP) — Pac-12 Commissioner George Kliavkoff says the 10 schools staying put in the Pac-12 Conference when UCLA and USC leave for the Big Ten next year are united in driving the future success of the league. Kliavkoff says the conference is open to expansion and will be “incredibly bullish” about future growth. He spoke at Pac-12 women’s basketball media day. Stanford was picked as the favorite to win the conference by both coaches and the media.