I honestly thought the Yankees front office had learned from the error of their ways.
Remember when Dellin Betances first came up in 2011, he was a starter. Sure he threw hard, but his location was erratic at best, his stamina nonexistent. This led to a quick demotion down to the minors to learn the finer points of relief pitching.
Obviously, it worked — since returning to majors in 2013, Betances has made four straight AL All-Star teams.
Back in 2007, the Yanks had a good thing going with relief pitcher Joba Chamberlain.