AUSTIN, Texas (AP) - The Texas defense is in crisis.

Players say they have no confidence in stopping the run, they struggle to line up correctly and openly wonder if everyone is playing hard every play. And week after week, the Longhorns (4-2, 0-2 Big 12) can't seem to tackle.

The list of flaws and dismal performances the last four weeks have many Texas fans calling for second-year defensive coordinator Manny Diaz to be fired. Others question coach Mack Brown's ability to hang on beyond this season after a 63-21 loss to Oklahoma.

Brown still has confidence in Diaz, and said the coaching staff is working hard to fix the problems.

Now Texas has to prepare to play Baylor (3-2, 0-2), which has beaten the Longhorns the last two years and brings one of the top offenses in the country to Austin.