The Texans went on to post the third - largest defensive turnaround ( - 91.2 ypg ) in NFL history in 2011 .
Kollar 's unit adjusted to the defense 's transition to a 3 - 4 scheme in 2011 under Houston Defensive Coordinator Wade Phillips .
The Houston went on to post the third - largest defensive turnaround ( - 91.2 ypg ) in NFL history in 2011 .
Kollar 's unit adjusted to the defense 's transition to a 3 - 4 scheme in 2011 under Houston Defensive Coordinator Wade Phillips .