IRVING, Texas -- Dallas Cowboys right tackle Doug Free admits he is playing better in 2013 than he did a season ago, but as for the reasons, he’s not so sure. It could be a second year of playing right tackle. It could be a second year learning what offensive line coach/offensive coordinator Bill Callahan wants. Maybe there is motivation after seeing his salary cut from $7 million to $3.5 million. It could be health. “I’m not saying any of them are the magic potion,” Free said.
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