Updated Top 10 Prospects (2017): Miami Marlins: What’s Left After Trading Their Top Prospect

by Eric Stashin (aka The Rotoprofessor)

The Marlins surprisingly traded away Luis Castillo as part of a three-player package to acquire Dan Straily though it shouldn’t have been.  It was the second time he has been included in a trade in the past few months (Castillo was sent to the Padres as part of the Andrew Cashner trade, but returned to Miami after the injury to Colin Rea was discovered).  Where does that leave an already thin system?  Let’s take a look:


1) Braxton Garrett – Left-Handed Pitcher
ETA – 2020
Grade – B+

Selected seventh overall in 2016, he was widely regarded as having a high floor for a high school pitcher.  That’s thanks to an advanced curveball and the expectation that he develops and adds a bit more velocity to his fastball.  The latter is an assumption, but at 6’3” and 190 lbs. it’s easy to envision.  Like most young pitchers he will need to develop a third pitch to help keep opponents honest (something he’s already doing), but he has ample time for that.


2) Brian Anderson – Third Baseman
ETA – 2017
Grade – B

When you look at a third baseman who hit .265 with 11 HR and 3 SB over 483 AB between High-A and Double-A, you wonder why he’d be on our radars.  However his plate discipline in 301 AB at Double-A was impressive:

  • Strikeout Rate – 17.1%
  • Walk Rate – 10.4%

He hit .243 at the level, but a .274 BABIP was the reason why.  At 23-years old he shouldn’t be far from arriving, though he’s still young enough to expect some more power to develop (he’s likely a 15-20 HR type in the Majors).  He’s seen some time at 2B in the past, a spot that his bat would profile better, though he only manned 3B last season.



3) Tyler Kolek – Right-Handed Pitcher
ETA – 2019
Grade – B-

His 2016 was lost due to Tommy John surgery and prior to the injury there were questions about his control (5.05 BB/9 over 108.2 IP at Single-A in ’15).  With concerns about that prior to the surgery, will he be able to find it after?  Throw in a pitcher who was supposed to bring strikeout stuff, yet mustered a 6.71 K/9, and there’s reason for skepticism.  There’s obviously talent, as the second overall pick in the 2014 draft, but there are significant concerns.


4) Austin Dean – Outfielder
ETA – 2017
Grade – C+

There’s potential for Dean to develop, though there are also a lot of questions that need to be answered.  He spent ’16 at Double-A, hitting .238 with 11 HR over 480 AB.  He saw his strikeout rate rise (13.1% at High-A in ’15 to 20.5%), his speed disappear (18 SB in ’15 to 1 in ’16) and the 23-year old has yet to tap into his power (he had 32 doubles, 2 triples and 5 HR in ’15).  That doesn’t form an especially impressive outlook, though there is still hope.


5) Jarlin Garcia – Left-Handed Pitcher
ETA – 2017
Grade – C+

In theory Garcia was on the Marlins roster for a short-time in 2016, though he never appeared in a game and ultimately a triceps injury limited him to 50.2 IP across three levels (Double-A being the highest).  He’s shown good control throughout his minor league career (2.2 BB/9 over 479.1 IP) and pitching in Miami will help him to keep the ball in the ballpark.  His strikeout stuff appears to be limited (7.6 K/9, including 7.3 at Double-A), and ultimately that’s going to limit his appeal (though there is upside).  There is potential as he develops, but for now he appears to profile more as a back of the rotation starter.



The Rest:

6) Thomas Jones – Outfielder (Grade – C+)
7) Stone Garrett – Outfielder (Grade – C)
8) Jordan Holloway – Right-Handed Pitcher (Grade – C)
9) Dillon Peters – Left-Handed Pitcher (Grade – C)

Note – He was highly impressive splitting time between High-A & Double-A, with a 2.38 ERA, 1.08 WHIP, 7.3 K/9, 1.4 BB/9 and 1.92 GO/AO over 128.2 IP.  However we need to keep our outlook in check, as he is 24-years old and stands at 5’9”.
10) Isael Soto – Outfielder (Grade – C)

Sources – MILB.com, Fangraphs, Baseball Reference, MLB.com

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Grading System:
Grade A – Elite Prospects (aka potential future perennial All-Stars)
Grade B – Above Average Prospects (aka above average Major Leaguers, could develop into a potential All-Star)
Grade C – Average Prospects (aka solid, though unspectacular)
Grade D – Nothing More Than Roster Filler
Grade F – Move On

Make sure to check out all of our 2017 Prospect Rankings:

AL EastAL CentralAL West
Baltimore OriolesChicago White SoxHouston Astros
Boston Red SoxCleveland IndiansLos Angeles Angels
New York YankeesDetroit TigersOakland A's
Tampa Bay RaysKansas City RoyalsSeattle Mariners
Toronto Blue JaysMinnesota TwinsTexas Rangers
NL EastNL CentralNL West
Atlanta BravesChicago CubsArizona Diamondbacks
Miami MarlinsCincinnati RedsColorado Rockies
New York MetsMilwaukee BrewersLos Angeles Dodgers
Philadelphia PhilliesPittsburgh PiratesSan Diego Padres
Washington NationalsSt. Louis CardinalsSan Francisco Giants

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