Why do people assume trade=player sucks? Huge pet peeve of mine when fans talk a player down and then suggest they be traded. If you think he sucks then expect what comes back to suck too.
In this case of course, no one should be saying that Tatum sucks. But especially given the composition of the roster, switching out one of the wings should be a consideration. It might be the guy with the most value, the guy with the least, or the one in between. They're all tradeable. Just depends on what you get in return.