Posted: 01/07/2009 - Texas coach Rick Barnes can think of one way to improve the Big 12. Just add Arkansas. Michael Washington scored 22 points, including a driving dunk in the final minute, and the Razorbacks beat the seventh-ranked Longhorns 67-61 Tuesday night. Arkansas has now beaten two top 10 teams from the Big 12 this season. The Hogs knocked off then-No. 4 Oklahoma last week.