In February, defensive end Jason Hatcher questioned whether the Cowboyshad a player who could keep everyone in the locker room accountable. Cowboys coach Jason Garrett responded by saying there was nothing wrong with the team's dynamic.
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Working at the team's practice facility Friday, Lee said he would call out any issues that might arise among the players.
"If there's something that needs to be addressed I have no problem addressing it," Lee told the Dallas Morning News. "I think all my teammates realize that I have their back. I want to see them do the best.
"I want to see our team win a Super Bowl and be successful, so I have no problem stepping up and saying something if I find something that I feel is wrong."
After a second-year campaign in which he became a starter and led the team in tackles (105) and interceptions (four), Lee said his next step would be becoming a more vocal presence.
"I think playing more last year, being a guy that makes the calls in the huddle, I'm definitely going to have to step up from a leadership standpoint on the field and off the field," said Lee, who was sporting a red Texas Rangers hat. "I got a ton of great guys on the team right now to look up to. Guys like obviously Tony (Romo), Jason (Witten) and DeMarcus (Ware). So, there are a lot of guys that I'm looking up to and trying to be like, but at the same time, trying to become a better leader myself."