10. Mike Napoli (Boston Red Sox)
Napoli in no way had a year worthy of his contract this year. However, I fully expect that to turn around. Napoli was injured early and often this year, and even when he played, he never seemed himself. He should be back and healthy in 2015, ready to get back to his 20+ home run self.
The Former Angel hit 20 home runs in six straight years (2008-2013), spanning over his tenures with the Angles, Rangers, and Red Sox. His high in RBI came in his first year with the Red Sox (2013), when the Sox won the World Series. He had 30 fewer runs this year, and 37 less RBI. Most of the reason these numbers were down so much was the lack of production from the entire team.