SAN FRANCISCO (AP) — A person with knowledge of the search says Stanford athletic director Bob Bowlsby has been offered the Big 12 commissioner job to replace the ousted Dan Beebe. The person confirmed Wednesday night that Bowlsby had received the offer after ESPN first reported the news. The person spoke on condition of anonymity because details of the offer weren’t made public. Bowlsby is a nationally respected college administrator in his sixth full season at Stanford. He was hired away from Iowa in 2006, following 15 years running the Hawkeyes’ athletic department. Stanford’s rigorous academic standards present unique circumstances, and Bowlsby has shined and helped oversee the transformation of the football program back into a national power. Beebe was fired in September 2011 and replaced on an interim basis by Chuck Neinas.