Sources: Anywhere from 6-8 Big 12 schools back expansion, but one problem persists

Michael Ainsworth/Staff Photographer Big 12 Commissioner Bob Bowlsby speaks during the Big 12 media days at the Omni Hotel in Downtown Dallas, Texas, on July 22, 2013. (Michael Ainsworth/The Dallas Morning News) / mug - mugshot - headshot - portrait / 07262013xNEWS 08182013xSPORTSThe Big 12 will continue to discuss big issues at its meetings this week.

Just don't expect any major decisions on expansion, a football title game and a conference TV network by the time the Big 12's presidents adjourn Friday in Las Colinas. Still, the tantalizing possibility of anything definitive has resulted in about 35 media credentials, including interest from potential expansion outposts like Memphis,…