As I understand it, Baseball players are only paid during the season, so by the trading deadline the Rox will have already paid more than half of Cargo's salary for 2017. I think they could absolutely be able to move him to a contender willing to essentially rent him for the rest of the season in exchange for a couple of mid-tier minor leaguers.

I could easily see Cargo landing in Cleveland, KC, Washington or Tampa; each of whom could use outfield help. Maybe even with the Yankees in a DH platoon with Holiday.