AUSTIN (October 17, 2012)--Longhorns players say they have no confidence in stopping the run, struggle to line up correctly and wonder if everyone is playing hard on 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 has many Texas fans calling for the firing of second-year defensive coordinator Manny Diaz.

The defense faces another test when Texas plays Baylor (3-2, 0-2) Saturday night.

The Bears have one of the top offenses in the country.