Well Dallas holds his rights as he will play for them under the tender offer if noone else signs him. While I'm not positive on the legality here, the way a situation like this normally works is we would need to negotiate a contract with Barber. Once terms are agreed upon, we would have to work out compensation w/ the Cowboys. Since there are other picks/ players potentially involved, we would probably get a ballpark of what he's looking for from his agent, then work out trade terms w/ Dallas, then finalize terms w/ Barber, then complete the trade. His status as a RFA complicates things a bit, but doesn't make it impossible. Of course, I still think a trade w/ Dallas is highly unlikely.