9. Austin Slater
Stanford's Austin Slater progressed through the system rather quickly in 2015, and again this season. He played 60 games in San Jose, skipping the South Atlantic League, and was in Richmond by mid-season. Though he racked up 59 hits in his 54 games there (.296), he didn't show off the type of power he's capable of producing. He's no Jarrett Parker or Mac Williamson, but Slater is equipped to hit anywhere from 8-15 home runs in a full season. He gave viewers a peek at that power this spring when he hit a bomb off Yordano Ventura to dead center field. He can play all outfield positions, and can even make do in the middle infield, where he did quite well in 2015 before transitioning back to center field this year.
10. Jalen Miller
This Atlanta high school product is part two of the exciting middle infield in Augusta, Ga. for the new GreenJackets season. While Fox should get most of the looks at shortstop, Jalen Miller will certainly get his chance to prove his worth there, as well. Defense is generally the talk surrounding Miller, but he has a better bat than people give him credit for. During his first spring training, Miller but on display his strong hands and lightning quick bat. Though he'll move through the ranks as a contact, gap-to-gap type hitter, his first pro home run (exhibition) was incredibly loud and left the park at rapid pace. His speed is not as eye-popping as Fox, but is certainly above-average. Range and arm strength are solid, but maybe become plus when a shift to second base takes place.
11. Adalberto Mejia
Adalberto Mejia is still just 23-years-old, and that is one of many upsides to this hard-throwing lefty. He has dealt with multiple injury issues, including nagging blisters on his throwing hand, during a grinding 2014 season. Then he missed the first 50 games of 2015 after testing positive for a banned substance used for weight loss. Still, Mejia rebounded with a positive end to last year. He has late tail, and sink, with his low-to-mid 90s fastball and fools hitters on a regular basis with a plus changeup. His breaking pitches, slider and curveball, will need to improve for Mejia to reach his full potential. In terms of his weight, which had noticeably increased since 2013, looks to have been quelled in time for the start of the new season, where he promoted to Sacramento in June.
12. Ray Black
Raymond Black throws a baseball 100 miles per hour. So, there's that. You may not have heard of Black because complications from shoulder surgery set this 2011 draftee back a few years. 2014, remarkably enough, was his first pro season. And he threw straight cheese. In 35.1 innings, mostly spent as an Augusta GreenJackets reliever, Black kept his WHIP below one and struck out 71 batters. He was my dark horse for a September call-up in 2015, but is now on the 40-man roster to begin the 2016 season, which he'll spend in Richmond. He continues to strike out hitters at a crazy high rate, entering the new season averaging between 17 and 18 punch outs per nine innings. With the type of fastball/slider combination Black owns, command will always be his number one deal breaker.