When told that the Detroit Lions were in need of running back help and asked if they'd called the Panthers about Williams, who has one year remaining on his contract, John Fox said: "We have not received any phone calls," Fox said at a media breakfast for NFC coaches at the league's annual meetings. "He wouldn't be one of the guys on the top of my lists to deal (away). We've had no conversations about any of our backs." Fox said the Panthers were committed to keeping Williams and Stewart, who last season became the first pair of teammates in NFL history to each rush for 1,100 yards in the same season. "We're not looking to get rid of those guys," he said. "They're both very, very capable and, in my opinion, if you're going to lean on the run game, you need more than one."