According to Rotoworld via. Profootballtalk.com:
“The Rams and Cowboys are reportedly discussing a swap of OT Alex Barron for LB Bobby Carpenter. Both first-round disappointments have been on the block since the season ended, and this year’s draft has proven to be a further impetus. Cowboys second-rounder Sean Lee is ready to step into Carpenter’s role while Rams second-rounder Rodger Saffold would take Barron’s starting job. The teams will have to clear some contractual hurdles before a deal can be finalized.”
I think we all knew Sam Young and Robert Brewster weren’t going to be the only backup offensive tackles in the mix this off-season.