Oklahoma State is last in the Big 12 in opponent’s quarterback efficiency rating (129.6) as it returns just four starting members of its 2013 defense, including one in the secondary (cornerback Kevin Peterson). Texas Tech quarterback Davis Webb has struggled with inconsistency to open the season (Big 12-worst four interceptions), but could find his stride against an inexperienced Cowboys secondary. Oklahoma State allows 240.7 yards per game through the air (ninth in the league), though has three interceptions to its credit. Defensive coordinator Glenn Spencer told local media last week that the Red Raiders have “probably the best vertical passing threat that we’ve seen all year.”