Chris Johnson has 21 rushing yards on 19 carries through the first two games of the 2012 season.

“The run game ain’t working,” Johnson said. “We just aren’t executing the plays. I don’t know why we’re not.”

Johnson struggled in 2011, but figured to have a bounce back season for the Tennessee Titans.

“People need to step up and do their job,” Johnson said. “They don’t need to let people beat them. It don’t matter who the opposing defense is, you can’t let your guy beat you. You just can’t give up plays. You have to make plays like they make plays. I can’t speak for the defense. I can only speak for the offense.”