I’m not so sure. Melky Cabrera may not have superstar upside, but he’s a quality young player with little projection required. He posted a .331 wOBA last season, making him roughly a league average hitter, and he didn’t turn 25 until August. He’s got good contact skills and gap power, and it wouldn’t be surprising to see some of his doubles turn into home runs as he ages.
Defensively, he’s below average – but not terrible – in center, and he’d make for a quality defensive corner outfielder if that’s where the Braves choose to use him. All told, he’s roughly a league average player, with upside to develop into something a bit above average.
That has value, especially as a young player who will make far below his market value this year.
But it’s not Cabrera who makes this deal work for Atlanta – that’s Vizcaino, an underhyped 19-year-old who destroyed A-ball as a teenager. The classic projectable teenage arm, Vizciano throws a mid-90s fastball with a hard breaking curve, and has proven nearly unhittable in his brief professional career. He’s not close to the majors, but he’s a significant upside bet for Atlanta long term.
http://www.fangraphs.com/blogs/index.php/the-vazquez-deal