GM Ruben Amaro has built what is arguably the best Philadelphia Phillies roster in the entire 127 year history of the franchise. The team's nucleus of Jimmy Rollins, Chase Utley, Ryan Howard, Cole Hamels and Ryan Madson (to name a few) were developed through the team's minor-league system.
Those core group of players combined with one of the best ballparks in MLB, enabled this franchise the financial flexibility to go out and acquire top-flight free agents like Cliff Lee and trade for Roy Oswalt, Hunter Pence and Cliff Lee again.
The Phillies have the best starting rotation in baseball and now what could be a very potent lineup with the arrival of Pence. Building this team has cost the Phillies their fair share of minor league talent.
Here are the prospects the Phillies will regret trading away.