4. Julio Urias, LHP – Los Angeles Dodgers
No team had more question marks in the starting rotation coming into this offseason than the Los Angeles Dodgers. Would the team re-sign Zack Greinke? Who would be in the rotation behind Clayton Kershaw? While the team did lose Greinke, they have still done quite a decent job of filling in the holes and creating more depth in the rotation. With the re-signing of Brett Anderson, the impending returns of Hyun-jin Ryu and Brandon McCarthy at some point next season, and the additions of Scott Kazmir and Kenta Maeda, the Dodgers have a lot of depth in the rotation. This depth will be useful given the injury concerns that come with almost every pitcher on their staff, save for ace Clayton Kershaw.
Despite all the depth the Dodgers do have, one player in the minor leagues still may play some role with the big league club at some point next season. After starting the 2015 season in Rookie Ball, Urias advanced to high Single A after only two starts and then to Double A after only one start. Urias followed with thirteen starts in Double-A before ending the year with two starts in Triple-A at the end of the year. Urias pitched to a 2.77 ERA in his time in Double-A, dominating hitters despite being only 19 years old. Urias will likely start the season in Triple-A, but the Dodgers may not be able to keep him in the minors long if he continues to impress, especially if there are any issues with the rotation at the big-league level.