Texans middle linebacker DeMeco Ryans has assumed a leadership role with the team as the NFL lockout lingers. Since coaches aren't allowed to have contact with players, Ryans has undertaken the job of teaching new coordinator Wade Phillips' 3-4 scheme to the defense. "I'm just doing my part, man," Ryans said. Ryans is still recovering from a ruptured Achilles tendon that sidelined him for the last 10 games of last season. He referred to a playbook during a recent defensive practice, and repeated calls to ensure that the players understood. "It's important for us to get out here and get the guys some looks at our different offensive sets, and try to do our adjusting," Ryans said. "I think we are getting more comfortable with the terminology that we're using. The more reps you get, the better you get it."