E$PN ranks Big 12 teams by QB and RB groups....
QB
1. ou: Snowflake Mayfield might be the top returning quarterback in college football. He's twice finished in the top five of the Heisman Trophy voting and broke the FBS passing efficiency season record last season. The Sooners have depth behind him, too, with Austin Kendall and former Texas A&M transfer Kyler Murray both returning.
2. Oklahoma State: With 28 career starts, Mason Rudolph will enter 2017 as one of the most experienced passers in the country. Among quarterbacks who also threw for 4,000 yards last season, Rudolph threw the fewest interceptions (four).
3. Kansas State: Jesse Ertz was among the most improved players in the Big 12 during the second half of last season as he quietly finished third in the league in QBR. Ertz was the only Big 12 QB to rush for more than 1,000 yards last season, as well.
4. TCU: If [Kenny Hill] can find consistency, Hill has the talent to be among the top quarterbacks in the league. The future of the position is in good shape, with TCU signing ESPN 300 dual-threat QB Shawn Robinson last week.
5. Texas: Shane Buechele's freshman season got off to an incredible start as he torched Notre Dame in his first career game. But Buechele faded down the stretch in conference play as Texas failed to reach a bowl, leading to Charlie Strong's firing. Buechele might still be Texas' QB of the future. But he'll have to prove it by beating out Austin native Sam Ehlinger, who was one of the country's top QB signees last week.
6. West Virginia: This ranking... will hinge on Will Grier being the same quarterback he was those first six games as a freshman at Florida. After backing up Skyler Howard last season, Chris Chugunov figures to be the favorite... to do the same behind Grier this fall.
7. Bailor: Zach Smith struggled last year as a freshman but he had a breakout performance in Bailor's bowl game in the rout of Boise State. The QB battle between Smith and Arizona transfer Anu Solomon will be one of the more interesting ones in the conference.
8. Texas Tech: [T]he reins of the Tech air raid will be handed over to Nic Shimonek. The Iowa transfer shined in his lone significant action last season, throwing four second-half touchdowns in a victory over Kansas.
9. Iowa State: After taking over the starting spot from Joel Lanning, Jacob Park played well, throwing 12 touchdowns to just five interceptions. Back as well, Lanning gives Iowa State an experienced backup and a change-of-pace, run-first option behind center.
10. Kansas: The Jayhawks... are in better shape at quarterback than they have been in some time. Carter Stanley gave the offense a spark after taking over... late in the season. But the one to watch will be former Washington State QB Peyton Bender, who arrives in Lawrence as the No. 3 juco QB in the country.
RB
1. West Virginia: Justin Crawford is the Big 12's leading returning rusher after a 1,184-yard junior season that earned Offensive Newcomer of the Year honors. Kennedy McKoy was one of the conference's more productive freshman backs in 2016 and Martell Pettaway showed his potential.
2. TCU: No returning Big 12 running back put up more total yards from scrimmage than Kyle Hicks. His production (1,459 total yards, 14 TDs), versatility and leadership are invaluable for the Frogs. The return of Shaun Nixon gives their offense a serious boost.
3. Bailor: Lost in Bailor's late-season swoon was all the attention Terence Williams should've earned. He rumbled for 1,048 yards and 11 TDs as a sophomore.
4. Oklahoma State: The most productive freshman running back in college football last season was Justice Hill. He was truly the Cowboys' missing piece on offense. Hill needs some help, though, after three seniors graduated.
5. Texas: When Chris Warren III gets 100 percent healthy from the season-ending knee injury he suffered, the 250-pounder will be one of the Big 12's most dangerous running backs. The question is who will back him up? Kyle Porter, Kirk Johnson and ESPN 300 signee Toneil Carter will compete this spring, and Tom Herman called Daniel Young the steal of their recruiting class.
6. Kansas State: If Alex Barnes can become the Wildcats' consistent leader at running back, they'll move up this list. He averaged 7.9 yards per carry and produced two 100-yard games to end his redshirt freshman year, but Barnes received more than 10 carries in a game just once in 2016.
7. Iowa State: If Mike Warren gets back to playing like he did in 2015, the Cyclones have all they need for a potent run game. Warren has a lot to prove after a disappointing sophomore season, and David Montgomery and Kene Nwangwu will keep pushing him.
8. ou: Abdul Adams, Rodney Anderson, Trey Sermon, Marcelias Sutton, Kennedy Brooks. One or more of these guys will be the Sooners' next big star at running back, and several others need to make significant contributions in 2017. Sermon and Sutton coming in as midyear enrollees ensures OU will have some fierce competition in spring ball.
9. Texas Tech: Da'Leon Ward came on late in the season as a true freshman, which was encouraging, but here's the problem: Ward, Demarcus Felton and Justin Stockton combined to average 78 rushing yards per game last year. [P]erhaps junior college transfer Desmond Nisby can become the power back the Red Raiders lack.
10. Kansas: Incoming signees Octavius Matthews (E$PN's No. 1 ranked juco RB) and Dominic Williams have an opportunity to make a serious impact right away for the Jayhawks. They'll compete with Taylor Martin and Khalil Herbert, who played limited roles in 2016, as well as former Arkansas transfer Denzell Evans.