Posted by ESPN.com's Tim Griffin
Here are a few tidbits from around the Big 12 this week.
The biggest change in recent weeks is that Nebraska coach Bo Pelini is trusting in his scheme and the players who are operating it. Earlier this season, Pelini crafted a gimmick defense when he played Missouri. Now, he's more willing to let his talent play. Of course, the recent surge by the Nebraska front four is helping him feel that way, too. The Cornhuskers have notched nine sacks in their last two games after producing only five in the first five Big 12 conference games.
Two recent losses to Texas A&M has Texas coach Mack Brown searching for ways to better prepare for his traditional rival. One change that will help will be enthusiasm from his young players. Brown has been pleased with the contribution of young players in recent weeks. The list includes safety Christian Scott, center David Snow, defensive tackle Kheeston Randall and defensive ends Sam Acho and Eddie Jones. All had big games in the Longhorns' 35-7 triumph over Kansas last week. And the excitement of playing next week for a possible BCS berth should do the trick, too.
Oklahoma will be scrambling against Texas Tech's massive offensive line without two key pass rushers this week as defensive ends Auston English and Alan Davis both will be out with knee sprains. To build depth at the position, Oklahoma coach Bob Stoops has moved converted linebacker J.R. Bryant to one backup spot and seldom-used Pryce Macon will serve at the other position behind starters Frank Alexander and Jeremy Beal. The Sooners are also bracing to use the nickel formation as their base against Tech's collection of wide receivers. That would mean extensive use for backup safety Quinton Carter, who made his first career start against Kansas last month. And Nic Harris will likely remain at safety with redshirt freshman Austin Box continuing to start at middle linebacker for Ryan Reynolds, out for the season with a knee injury.
Chase Coffman is unquestionably one of the most valuable receivers in the conference, but does the Missouri system play just a little part in his success? Freshman backup Andrew Jones produced seven catches last week against Iowa State as the Cyclones hardly missed Coffman, who was out with a sprained toe.
Iowa State has gotten to the final game without quarterback Austen Arnaud sustaining an injury, with only freshmen Jerome Tiller and Brett Bueker behind him as backups. If Arnaud should become injured against Kansas State, coach Gene Chizik has a plan. Chizik said he would insert freshman wide receiver Darius Darks, a converted high school quarterback and the team's leading receiver last week against Missouri, into the quarterback position. Chizik also said that the Cyclones have worked on an emergency package that includes direct snaps to the tailback. He remains adamant about saving the redshirts for both Tiller and Bueker after not playing either of them this season after the midseason departure of former backup quarterback Phillip Bates.