Just off the top of my head (and as much as it pains me to say), I'll go with J.D. Drew. He's been around for a long time, and has been pretty much a disappointment. His career numbers are barely decent, but maybe the high expectations for him at the beginning of his career skews our perception. I just think he might be much more relaxed and comfortable this year, his 2nd in Boston, especially after his performance in the playoffs and winning the World Series. He could have a huge year, and begin to justify his contract.