NFL Trade Rumors: Five deals the Dallas Cowboys should make by the trade deadline

5. The Cowboys should trade tackle Jeremy Parnell

Dec 23, 2012; Arlington, TX, USA; Dallas Cowboys tackle Jeremy Parnell (78) watches the score board during the game against the New Orleans Saints at Cowboys Stadium. The Saints beat the Cowboys 34-31 in overtime. Mandatory Credit: Tim Heitman-USA TODAY Sports

As hard as it is for me to admit, Doug Free has been one of the best tackles in the NFL so far this season. That’s a huge leap from last year, when Free was the most penalized lineman in the league. With Free playing so well, his back-up has become a luxury for Dallas. And with plenty of teams needing offensive line help, Parnell’s value is at a premium as he could become an instant upgrade at right tackle for many of them.

Potential trade partners: Miami Dolphins, Atlanta Falcons, Kansas City Chiefs