A Texans secondary young at cornerback has been all too easily taken apart by opposing passing games this season. Colts QB Peyton Manning and Redskins QB Donovan McNabb both threw for more than 400 yards in the Texans' first two games, raising fears the pass defense could be this promising team's Achilles' heel. On the other hand, the Texans have been exceptional against the run since last October. In 15 games during that span, Houston is allowing 77.2 yards per game on the ground. The way we hear it, the Texans' coaching staff has played a key role in the defense's sustained stoutness against opposing rushing attacks, with defensive coordinator Frank Bush, assistant head coach/DL coach Bill Kollar and LB coach Johnny Holland all respected teachers. The hope is the defensive backfield, which features a rookie (Kareem Jackson) and a second-year player (Glover Quin) at the corners, will improve with experience and tutelage.