It's actually low risk/low reward. The Braves aren't using him necessarily because he'll succeed in the NL East, they are using him as a stopgap to some of their young arms in their farm system that can come up this year (Fried, Weigel, Newcomb). He might also be a slight improvement over Wisler or Blair at the moment. Then, at the trade deadline, they trade him to a contender for something of value. They've been doing this with pitchers and hitters to build the depth of their farm, and this continues the trend. The Marlins example is when they traded them Jeff Franceour in the three team trade that also included the rangers for Dylan Moore and Matt Foley.