Mack Brown is doing double duty these days.
On top of his head coaching responsibilities, he also is attending meetings of his underachieving Texas defense and watching the unit more closely at practice.
The defense needs the help, and it's a safe bet Brown will be alongside defensive coordinator Manny Diaz in preparing for a stiff test Saturday when Texas plays at No. 20 Texas Tech, which is averaging 507 yards of offense a game.
For the first time since at least 1950, the Texas defense has allowed more than 600 yards in back-to-back games (Oklahoma and Baylor).
Texas is No. 108 in the nation in stopping the rush and 56th in stopping the pass. The Longhorns are 96th in total defense, a far cry from finishing last season 11th.