Hulet at fangraphs profiles 5 players who had not played in the majors before this year:
Rendon (the Graduate) ("among second basemen with more than 350 plate appearances, Rendon finished 19th in WAR and his offensive contributions were below replacement level"),
Karns (the Riser)(with "improved fastball command, he could settle into a No. 3 or 4 starter role — perhaps as early as 2014."),
Skole (the Tumbler) ("He’ll open the 2014 season at the age of 24 with just two games of experience above A-ball thanks to his serious elbow injury"),
Ward (the Draft choice) ("outstanding pro debut at the plate while hitting for average with gap power"), and
Souza (the Sleeper) ("first five pro seasons were nondescript but things began to click in 2012 and his success continued into ’13").
http://www.fangraphs.com/blogs/a-minor-review-of-2013-nationals/
