"The worst part of the Texans' 2010 defense was the secondary.

During that 6-10 season, the Texans ranked 30th in defense, including last against the pass.

The secondary didn't need fine-tuning; it needed an overhaul.

David Gibbs, who coached the secondary, was part of a purge that included coordinator Frank Bush and linebackers coach Johnny Holland.

Coach Gary Kubiak hired defensive coordinator Wade Phillips, who brought linebackers coach Reggie Herring with him from Dallas. Vance Joseph was lured from San Francisco to coach the defensive backs."