Cowboys' receiver Roy Williams is frustrated with his role in the team's offense, echoing comments Terrell Owens made about the former Lions' role. "I know I am a player in this league," Williams said, according to Dallas-Fort Worth area media reports. "My thing is, if you brought me in half the season, you obviously know what I am capable of doing. You wouldn't have spent what you did to get a person. You know what I can do. I know what I can do. I can tell you what I can't do. I'm just waiting." Nearly a month ago, Owens and fellow receivers Patrick Crayton and Roy E. Williams reportedly met with offensive coordinator Jason Garrett to express their concerns about the team's offense.