As spring ball kicks off in Big 12 country this week, plenty of questions abound in the league. Many won't be answered until the the fall. But some could become clear this spring.
Below are 10 burning Big 12 questions to follow this spring:
Who will become Oklahoma's primary ball carrier?
The Sooners lost a boatload of production out of their backfield when Samaje Perine (the school's all-time leading rusher) and Joe Mixon (No. 2 nationally in all-purpose yardage in 2016) bolted for the NFL draft. Finding their replacements will be paramount for a program with eyes toward getting back to the CFP.