Oklahoma State: The Cowboys return All-Big 12 quarterback Brandon Weeden.
Oklahoma: The Sooners return Landry Jones, who passed for 4,718 yards and 38 touchdowns while leading OU to the 2010 Big 12 Championship.
Baylor: Robert Griffin III returns after leading the Bears to a 7-6 record and first bowl appearance in 16 years.
Texas A&M: After taking over for 2010 preseason player of the year Jerrod Johnson, Ryan Tannehill led the Aggies to home wins over OU and Nebraska.
May the best man win
Texas: Garrett Gilbert started for the Longhorns last season, but Case McCoy, Connor Wood and David Ash continue to battle to supplant the junior-to-be in the starting lineup.
Texas Tech: Junior Seth Doege sits atop the Red Raiders' post-spring depth chart, but his spot is not secure.
Missouri: James Franklin and Tyler Gabbert, Blaine's younger brother, are battling to lead the Tigers. Coach Gary Pinkel declined to name a starter on Tuesday, but Franklin appears to be the leader after a strong showing in Mizzou's spring game on Saturday.
Iowa State: Much like Texas, it's a four-man race. Coach Paul Rhoads says the Cyclones “don't need a starting quarterback right now,” but Jerome Tiller appears to have the edge heading into preseason camp.
Kansas: Jordan Webb, who started seven games in 2010, returns, as does Quinn Mecham, who started four games. Neither quarterback has seized the job as KU coach Turner Gill remains unsure who will start for the Jayhawks in 2011.
Kansas State: The Wildcats have three quarterbacks battling for the starting spot. Junior-college transfer Justin Tuggle joins Collin Klein and Sammuel Lamur in the competition.