System In 20 Words Or Less: One of the best systems in the game has dropped dramatically due to a combination of graduations, trades, and disappointments. Five-Star Prospects 1. Martin Perez, LHP Four-Star Prospects 2. Jurickson Profar, SS 3. Tanner Scheppers, RHP Three-Star Prospects 4. Engel Beltre, CF 5. Michael Kirkman, LHP 6. Robbie Erlin, LHP 7. Jake Skole, OF 8. Luis Sardinas, SS 9. Jorge Alfaro, C 10. Mike Olt, 3B 11. Roman Mendez, RHP Nine More: 12. Robbie Ross, LHP: An undersized southpaw in the mold of Erlin, in that he's also armed with outstanding control. 13. Miguel De Los Santos, LHP: This rocket-armed Dominican shined this winter, but he's 22 and hasn't pitched in a full-season league yet. 14. Kellin Deglan, C: The first-round pick is an athletic catcher with plus defense, although there are questions about the bat. 15. Luke Jackson, RHP: A supplemental first-round pick who is very projectable, and who could move up this list in short order. 16. David Perez, RHP: He put up silly numbers in the Dominican Summer League, and his fastball already up to 94 mph. 17. Miguel Velazquez, OF: He's a solid hitter, but is that good enough to work in a corner? 18. Christian Villanueva, 3B: He's an impressive teenage third baseman, especially defensively. 19. Fabio Castillo, RHP: A relief prospect with mid-90s heat and a good breaking ball. 20. Wilmer Font, RHP: He would rank higher if not for TJS; he had earned some Carlos Zambrano comps for both his stuff (good) and body (bad). 1. Martin Perez, LHP DOB: 4/4/91 Height/Weight: 6-0/178 Bats/Throws: L/L Drafted/Signed: 2007, Venezuela 2010 Stats: 5.96 ERA (99.2-117-50-101) at Double-A (24 G) Best/Worst Tool: Fastball/curve Year in Review: Rangers pushed their top prospect all the way up to Double-A as a teenager, but scouts saw through the uneven results and remained high on his future. The Good: Because he's armed with three plus pitches, Perez has the ability to become an impact starter. His low-90s fastball can touch 95 mph at times, and features plenty of movement. His slow, looping curveball is a plus pitch when he has a feel for hit, and an outstanding changeup is his best secondary offering, one that features plenty of late drop. While he's a bit undersized, it isn't a major concern for scouts due to his picture-perfect delivery and easy arm action. The Bad: Perez struggled with attaining consistency in 2010, mixing dominating outings with terrible ones throughout the year. His velocity fluctuated wildly, ranging from 87-95 mph, and he was often guilty of aiming his pitches and reducing their effectiveness by doing so, while also losing snap on his breaking ball. Ephemera: Perez allowed two or fewer earned runs in 14 of 24 outings in 2010, but had a 12.14 ERA in the other 10 games. Perfect World Projection: He'll become an All-Star-level starter. Fantasy Impact: Not a first-round pick, but he'll go off the draft board early. Path to the Big Leagues: After rushing him to Double-A, Perez might begin the year by repeating the level with the hopes that he can find more consistent success. He still could reach the big leagues before his 21st birthday. ETA: 2012 http://www.baseballprospectus.com/article.php?articleid=12845 --

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