There's zero reason to keep Liriano unless we think there's some microscopic chance of making the playoffs. Otherwise, we're just paying several million for the hell of it. Save that money for next year. Burns would serve fine as a 4th outfielder, is controllable, cheap, and a stolen base threat off the bench. We could do a lot worse. He's basically Barney / Goins in the outfield, but with added stolen base ability.