Duane underwood has the most ace potential in our lower levels. He keeps his control and he will start to fly through the ranks. Kids arm is special. Ever heard of a live arm. That's him. Throws 92 but it feels like 95 with movement. Secondary pitches show a ton of life. He made huge strides last year.
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C.J. Edwards
Scouting grades: Fastball: 65 | Curveball: 60 | Changeup: 50 | Control: 55 | Overall: 55
Texas nabbed Edwards, who was lightly scouted in high school, in the 48th round of the 2011 Draft. He quickly developed into much more than a typical 48th-round pick, and he was a key component to the package the Rangers sent to the Cubs in exchange for Matt Garza in July '13. Edwards has shown electric stuff with his new organization, though shoulder inflammation has limited his innings this year.
Edwards throws his fastball in the low-to-mid 90s, and it can touch 97 mph. He does a good job of keeping his fastball down in the zone, and he only gave up one home run in 116 1/3 innings in 2013. Edwards' best offspeed pitch is his 12-to-6 curveball, and his changeup has improved as a professional.
Edwards is skinny, and some scouts question his long-term durability as a result. If he can prove that won't be a problem, his stuff is good enough to make him a front-line starter.
Pierce Johnson
Scouting grades: Fastball: 60 | Curveball: 60 | Changeup: 50 | Control: 50 | Overall: 50
Johnson had an impressive first full professional season, pitching well across two levels in 2013. And perhaps most importantly, he stayed healthy after a checkered injury history as an amateur dinged his stock leading up to the '12 Draft. Johnson hasn't been as fortunate this year, as hamstring and calf issues sidelined him early.
Johnson's fastball sits in the low 90s, and it is most effective when he keeps it down in the zone. He has a good feel for his hard curveball, which is an effective out pitch. Johnson rounds out his three-pitch mix with a solid changeup.
At his best, Johnson pounds the strike zone and shows the ability to command all of his pitches well. He earned praise for his pitchability, and he looked the part of an advanced college pitcher at the outset of his professional career. Johnson profiles as a middle-of-the-rotation starter.
Jen-Ho Tseng
Scouting grades: Fastball: 60 | Curveball: 55 | Changeup: 50 | Control: 50 | Overall: 45
Tseng looked like an elite international prospect when he dominated the 18-and-under World Championships in September 2012, but his stuff and delivery regressed significantly by the time he pitched for Taiwan as an 18-year-old in the World Baseball Classic the following spring. Undaunted, Chicago signed Tseng for $1.625 million last July.
The early returns on that investment have the Cubs optimistic that they could have a future No. 3 starter on their hands. Tseng was so impressive in Spring Training this year that Chicago sent him to Class A for his pro debut, and he got off to a terrific start at Kane County.
Tseng's stuff has bounced back to where he's pitching with a consistent 90-95 mph fastball. He also can get swings and misses with his curveball. Tseng has advanced feel for his changeup and for finding the strike zone with all three of his offerings.
Paul Blackburn
Scouting grades: Fastball: 55 | Curveball: 55 | Changeup: 50 | Control: 45 | Overall: 45
The first of four high school pitchers selected by the Cubs in the top five rounds of the 2012 Draft, Blackburn has one of the best combinations of stuff and feel among the system's mound prospects. He projects as a potential No. 3 starter, with command of three average or better pitches.
Blackburn's best pitch is a 90-93 mph fastball, with the sink to generate plenty of groundouts. He spins a nice curveball, too, and he already has an effective changeup. Blackburn is already starting to add strength, and he has the athleticism to repeat his delivery on a regular basis.
Blackburn finished his first full season with two dominant starts in the short-season Northwest League playoffs, which could be a harbinger of a breakout this year. If he can build on that progress, he could advance very quickly for a prep prospect.
Corey Black
Scouting grades: Fastball: 65 | Curveball: 50 | Slider: 55 | Changeup: 45 | Control: 45 | Overall: 45
After the Cubs traded Alfonso Soriano to the Yankees for Black last July, New York general manager Brian Cashman went on record as saying that he was opposed to the deal, because he didn't want to give up the live-armed right-hander. A fourth-round pick in 2012, Black touched 100 mph with his fastball during instructional league that fall, and he worked at 91-96 mph as a starter in his first full pro season.
Black has more than enough pitches to remain in the rotation. His hard slider gives him a second swing-and-miss pitch, and his curveball made siginificant strides in 2013. Black's changeup has enough fade to keep hitters off balance.
Though Black has the arsenal to start, some scouts believe he projects more as a reliever in the long run. He's small and slender, and he has some effort to his delivery, leading to questions about his long-term durability and command. If Black moves to the bullpen, he'd likely add more velocity and be a late-inning option.
Carson Sands
Scouting grades: Fastball: 60 | Slider: 55 | Changeup: 45 | Control: 50 | Overall: 45
By taking projected mid-first-round talent Kyle Schwarber with the No. 4 overall selection and college senior Jake Stinnett in the second round in June, the Cubs stockpiled cash to land high-profile high school pitchers in the later rounds. They took Sands, who figured to go before the second round, in the fourth and signed him away from his Florida State commitment for $1.1 million.
Sands shows the ability to throw strikes with all three of his pitches. His best offering is a 90-94 mph fastball with good life, and he also has a solid curveball and a promising changeup. Sands has a nice build with the room to add more strength and velocity.
Sands is a product of North Florida Christian High, which also produced a 2014 third-rounder in Matt Railey (Diamondbacks). Sands' younger brother Cole, a right-hander, is an early-round prospect for the 2015 Draft.
Duane Underwood
Scouting Grades: Fastball: 60 | Curveball: 55 | Changeup: 45 | Control: 50 | Overall: 45
Underwood had an inconsistent high school senior season in 2012, running his fastball up to 98 mph and flashing a nifty curveball on some days and losing velocity and his feel for spin on others. In need of pitching, the Cubs invested a second-round pick and $1.05 million in him. He was inconsistent in his first two seasons but had his best year as a pro in 2014 after taking his conditioning more seriously.
Underwood usually pitches at 92-95 mph with his fastball, and he could regularly work in the mid 90s once he fully matures physically. His hard curveball shows promise, while his changeup is more of a work in progress.
Chicago knew Underwood would be a long-term project who would need time to develop. His control and command took a nice step forward last season, and if he puts everything together, he could be a mid-rotation starter or a late-inning reliever.
That is the rankings.