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New Farmhands- Jacob Marisnick, Colin Moran and Francis Martes

In the trade for Jarred Cosart and Enrique Hernandez, the Astros grabbed two prospects who give the farm system a big shot in the arm.

Mark J. Rebilas-USA TODAY Sports

In a return that is frankly somewhat hard to believe, the Astros have acquired two players that very well may have significant big league futures in outfielder Jacob Marisnick and third baseman Colin Moran. Who are they?

Jacob Marisnick

A former Toronto Blue Jays prospect who at one point rated in top 50s, Marisnick oozes tools and has improved steadily since a rough transition to the high minors. A massive, 6'4", 225 pound centerfielder, Marisnick moves remarkably well for his size and has the arm you'd expect. As a hitter, Marisnick has a nice, smooth stroke that keeps the barrel of the bat in the strike zone for a long time. He has a smooth weight transfer and shows some feel for hitting. He tends to be very aggressive at the plate, though, and his walk numbers suffer as a result. His contact rates have steadily improved, and given his mechanics and athleticism it is not unreasonable to expect him to be able to hit .270+ in the major leagues if his approach can be toned down some, but if he isn't he could be an OBP liability.

Marisnick's best assets are his speed and defense, but his power potential should not be undersold- he is enjoying his third double-digit minor league campaign in 2014, and though his swing is more contact driven, the natural power in his frame makes him a threat to be a 10-15 home run hitter in the major leagues if his bat allows it. Marisnick projects as a 6-7 hole hitter on a good team with strong OF defense, but will need to make strides with his approach at the plate to reach that ceiling.

Colin Moran

The 6th overall pick in the 2013 draft, and a player the Astros flirted with heavily leading up to their selection of Mark Appel, Colin Moran is a well known commodity. He's a "baseball athlete" with length, tremendous hitting feel, and enough glove at the hot corner to stick there. He employs a somewhat quirky but very workable swing that is incredibly quick to the ball. His best tool is by far the hit, which could grade out as high as 65 on some scouts' clipboards. He has true .300 hitting potential, though he has been a bit less than advertised in the Florida State League with a .294/.342/.393 line, but the FSL is notorious for being hard on power. He has done a good job of keeping the ball in play but needs some statistical improvement to shoot up prospect lists again.

Moran will rely on his bat to make it to the major leagues, and his ability to barrel the ball could make him a 2 or 3 hole hitter if he regains his form. The rest of his game is rather average, but it's the stick that got him taken top ten in the draft.

Francis Martes

A very green prospect currently in the GCL, Martes is the unknown of this package. Currently four months shy of his 19th birthday, Martes (who, due to his surname, is sure to have the nickname Ruby Tuesday), has struck out a batter per inning in rookie ball but has also walked 20 batters in 33 IP. He stands 6'0", 170 lbs. and has youth and strikeout rate on his side despite the rough command numbers. An Astros scout saw something he liked, and there's a chance he could turn into a more significant prospect, perhaps in the bullpen, later on.

This is a very significant return for the Astros, who also acquired 2015's top competitive balance selection. Houston's rich farm system has gotten richer.