Posted by ESPN.com's Tim Griffin
Here are a few tidbits from around the Big 12 as teams prepare for their upcoming games this weekend.
Look for Texas' vaunted "Q Package," developed to showcase the varied talents of QB John Chiles, to be shelved. Chiles has shown little this season, particularly as a passer. And starting QB Colt McCoy has emerged into perhaps the nation's most underrated dual-threat quarterback.
Missouri S William Moore is back and practicing without a red jersey this week, meaning he'll likely be ready for Nebraska. His absence the last couple of weeks has been the biggest reason for the drop-off in production from the Tigers' defense. Those struggles remain the Tigers' biggest question heading into conference play.
The return of WR Dexton Fields will not only provide Kansas with its best deep receiving threat, but the Jayhawks also have missed Fields' downfield blocking, which has hurt the breakaway abilities of their pedestrian running game.
After missing last week's game for what coach Bob Stoops termed as "adiscipline problem," Oklahoma G Duke Robinson should be back in the starting lineup this week for the Sooners. Robinson's absence was one of many reasons why the Sooners rushed for only 25 yards last week against TCU -- lowest total in an Oklahoma victory since beating Alabama in 2002.
Josh Smith's recent fumbling struggles has Colorado coaches considering changes in his use on the special teams. Smith had never played special teams before college and coaches worry he's trying to do too much. Jason Espinoza's return from a broken collarbone could give them another return option, although he's not expected to be back until next week.