The Phillies could have Christian Villanueva Jersey a busy offseason as they finally enter their long-delayed rebuilding stage. The team's most valuable trade chip, by far, is Cole Hamels, one of the game's top starting pitchers.So what would it take for Philadelphia to move its lefty ace?MORE: | | | "Industry sources say the Phils are looking for at least three top prospects, two that Manny Machado Jersey can play right now and another that isnt far away," . "The Cubs and Red Sox are two known suitors and both have the farm systems to get a deal done if they are willing to meet the Phillies rightfully high asking price."The Phillies face plenty of hurdles if they expect to get that much in return Dave Winfield Jersey for the three-time All-Star.For one thing, this year's includes such as quality starting pitchers as Max Scherzer, Jon Lester and James Shields. The Cubs, for instance, are interested in Lester, who they could acquire without giving up top prospects.Then there's the money. Hamels is owed a maximum of $114 million over five years after this season. He turns Luis Perdomo Jersey 31 next month.And, oh yeah, he has a 20-team Adrian Morejon Jersey no-trade clause.Still, there's no denying Hamels is an elite starter. He had the National League's second best ERA (2.46) and WAR for pitchers (6.6) in 2014. In both cases, he trailed only Clayton Kershaw.