Very good question.
Obviously some of the lower level guys could make a huge jump with a good season. Guadaloupe Chavez, Juan Meza, Travis Bergen, Ryan Borucki, and Angel Perdomo come to mind for guys outside of the top 10. Guys who really need to make an impact this year are little more clear and include Pentecost, Hollon, Jansen, Smith, and Davis. They're all getting a little old and while talented, they haven't performed and need to move up the ladder to remain a part of the big picture.