An uprising in the Big 12 has lowered the stakes of the year-ending Bedlam rivalry game.  When No. 12 Oklahoma plays at No. 5 Oklahoma State on Dec. 3, it will be for the Big 12 championship instead of a national championship – as long as the Sooners can avoid another upset.  Iowa State, which handed Oklahoma State its first loss last week, visits Norman on Saturday.  Sooners coach Bob Stoops said Monday the chance for an eighth Big 12 title still provides “great motivation.” Oklahoma State will be trying for its first title.  The Bedlam game was set up as a potential national semifinal before Baylor and Iowa State, which came into the year with the fewest wins in Big 12 history, pulled off upsets on consecutive days.