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Jesus Montero showed promise in his first season in Seattle
While Bay was an awful signing for the Mets, this was arguably the worst personnel move that the Yankees have made in recent memory. Before the season began, GM Brian Cashman jumped at the opportunity to deal the Yankees' top prospect Jesus Montero. In return for Montero and middle reliever Hector Noesi, Cashman received the 22-year-old All-Star pitcher Michael Pineda and promising pitching prospect Jose Campos.
Montero was a September call-up in 2011 and had great success with the Yankees, hitting .328 in 61 at- bats. Pineda's 2011 season was stellar as well. He struck out 173 in 171 innings and compiled a 1.10 WHIP.
But despite having ace potential, Pineda's demeanor guaranteed that this trade would backfire for the Yankees.
Montero had a good 2012 campaign and will only continue to improve as he matures as a catcher and at the plate. Pineda, however, came into spring training out of shape and lacked the elite velocity he displayed in 2011. He proceeded to try to make up for this by overthrowing and tore the labrum in his throwing shoulder.
And if you thought Pineda couldn't do any more damage while recovering from shoulder surgery, you thought wrong. In late August, he showed his immaturity off the field by receiving a DUI.
Both of these players are young, and Pineda may well be the better player a year from now. But after one season, the Mariners clearly edged the Yankees on this one.