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System In 20 Words Or Less: The 2010 draft and one international signee transforms the system with a trio of ultra-high ceiling teenage arms.

Five-Star Prospects
1. James Taillon, RHP
2. Stetson Allie, RHP
Four-Star Prospects
3. Luis Heredia, LHP
4. Tony Sanchez, C
Three-Star Prospects
5. Rudy Owens, LHP
6. Bryan Morris, RHP
7. Starling Marte, OF
8. Jeff Locke, LHP
9. Diego Moreno, RHP
Two-Star Prospects
10. Colton Cain, LHP
11. Zack Von Rosenberg, RHP

Nine More:
12. Mel Rojas, Jr., OF: This third-round pick is a big, athletic switch-hitter with plus speed and some power potential, but is very raw.
13. Zack Dodson, LHP: He's a lefty who has potential for three solid offerings, but projects as back-end starter.
14. Alex Presley, OF: Presley is a diminutive outfielder who can hit, but he doesn't profile well for a corner due to a lack of power.
15. Gorkys Hernandez, OF: He's one of the best defensive outfielders in the minors, but will he ever hit?
16. Chase D'Arnaud, SS: D'Arnaud collapsed at Double-A in 2011, but he still offers a decent approach and speed.
17. Andrew Lambo, OF: This former Dodgers prospect has seen his stock fall due to poor performances and drug suspensions. The Pirates believe in the bat, and a good showing so far in the Arizona Fall League is creating optimism.
18. Nick Kingham, RHP: This 2010 fourth-rounder is big and projectable, but he's more of a thrower than a pitcher for now.
19. Josh Harrison, INF: An ex-Cubs prospect, Harrison can put a bat on the ball, but like Presley, he's tiny and offers few secondary skills.
20. Quincy Latimore, OF: He's a compact athlete who had minor a breakout year with 19 home runs and 100 RBI