Kyle Schwarber, Cubs

While Schwarber will never be known as a Gold Glove-caliber outfielder, he has become quite valuable at bat. Last season, he hit .250 with 38 homers (tied for seventh in NL) and an .871 OPS. While the .250 batting average may not stand out, it was just two years prior that he hit .211 and was sent down to AAA for a brief time.