"No one is unhappier with the lack of a pass rush than Texans defensive coordinator Richard Smith. But Smith also doesn’t want to run everything in his playbook until the regular season begins.

Smith and coach Gary Kubiak are satisfied with the preseason performance of Mario Williams. The problem, according to the coaches, is getting others to help him.

“I have no problem with his performance, but we need some production and pressure from other people,” Smith said. “Up front, we have to put more pressure on the quarterback. We have to win the one-on-ones.

“In return, if we bring a linebacker, we have to be able to slip a block and make a play on the quarterback. It’s not the sacks that concern you. It’s making the quarterbacks throw off rhythm.

“How many sacks did Dallas get? Zero. But they made (Matt Schaub) throw off rhythm. And that’s what we need to generate. And along with that, on the back end, we’ve got to play some tighter coverage and make that quarterback have to hold that ball.”

Green, Brown out

Veteran Texans running backs Ahman Green (groin) and Chris Brown (back) continue to be sidelined.

“You’ve got to be patient in this business,” coach Gary Kubiak said. “Guys get hurt, and there’s nothing you can do about it. The key is that you expect them back, and I would say right now there’s no doubt we expect Ahman back pretty quick.”

Green is expected to be ready for the opening game at Pittsburgh on Sept. 7. "