#4. Phillippe Aumont
After acquiring Roy Halladay, the Phillies were poised to have a top-tier rotation in 2010. The combination of Halladay, Cliff Lee, and Cole Hamels gave fans plenty to dream on.
Instead, the Phillies opted to trade Lee to the Mariners for a trio of prospects, headed by 2007 first-round pick Phillippe Aumont. The big right-hander was already in AA, although he reached that level in the bullpen.
The Phillies tried Aumont again in the rotation, but his control suffered. Aumont walked 6.89 batters per nine innings in 11 starts with the AA Reading Phillies that year.
After a return to the bullpen, Aumont returned to pre-trade form, carrying a 2.48 FIP between AA and AAA in 2011. The same couldn’t be said for 2012, where his FIP regressed to 4.02 in the minors.
After a middling major-league debut in 2012, Aumont continued to struggle in 22 appearances out of the bullpen in 2013. From there, he bounced between the majors and AAA, never finding his control. Aumont could punch batters out at a solid rate, but it didn’t matter when he was walking them just as much.
Perhaps what stung the most about Aumont was the fact that the Phillies traded a fan favorite to get him. Lee carried the Phillies to the World Series the season prior, and was rewarded with his second trade in six months. The Phillies hoped the trade would helped replenish the farm system; it instead robbed them of a year of Cliff Lee and the prospects meant to better the team’s future bottomed out.
Next: No. 3-The Month to End All Months