Jorge DeLeon has gotten in to two MLB games so far this year, but the 26 year old only started pitching in 2010, after washing out as a middle infielder. In 2012, he struggled in Lancaster, an extreme hitter friendly environment (though even his peripherals weren't that great). This year, he started in AA, but his strikeout rate still wasn't very high and he actually gave up more homers. The one positive was that he started limiting walks better. In 15 AAA innings, he did an even better job of limiting walks, hence the September call-up (not to mention that he has been on the 40 man for some time and the Astros need to see what they have). The first thing I noticed when I saw him live was that he was really slender looking (listed at 6-0 185, he certainly looks like a middle infielder).
DeLeon was the hardest thrower on either team in the game and it really wasn't close. Unfortunately, even though they were fastballs, the radar gun didn't pick up two of his first three pitches.
The slider has quite a bit of slide but the command was not good. According to MLBAM tags, he has averaged just over 95 MPH with his fastball, with a cutter, slider, and change all in the mid-80s.
Jason Stoffel was acquired by the Astros from the San Francisco Giants in the Jeff Keppinger trade in the middle of 2011. A 24 year old RHP at 6-2 225, he was originally a 4th round pick out of the University of Arizona. Other than a leg kick that keeps him back to begin with, the rest of the delivery seems pretty cookie cutter:
While Stoffel has never pitched in the Majors, he has pitched in the Arizona Fall League, so we have some Pitch F/X data on him (more pitches than DeLeon even). According to Brooks Baseball's tags, he has a 4-seamer, sinker, and slider, averaging about 93 MPH on the first two pitches and 83 MPH with the slider. Because of this, he showed himself to be mainly a low and arm side pitcher. He didn't get close to this fastball velocity when I saw him and was extremely slider heavy:
Wade LeBlanc is a 29 year old veteran with 417 career MLB innings, with more starts than relief appearances. He pitched in the Padres organization from 2006-2011, but he has split 2013 between the Marlins, the Astros, and the Astros' AAA (he was recently removed from the Astros 40 man). He has also split time between the starting rotation and the bullpen. Overall, he has been a below average but above replacement pitcher, both in 2013 and his career as a whole. When I saw him in the Astros AAA, he was brought in out of the bullpen to face a couple of left-handed batters. However, for his career, Leblanc has been a reverse split pitcher, meaning he is better against lefties than righties. While his arm angle comes out, perhaps one reason for this is the deception built into his delivery:
By using Baseball Savant to find pitches released in his general release point area (5 feet 10 inches tall to 6 feet 7 inches tall, 1.5 feet to 2.5 feet horizontally, or over 98 % of LeBlanc's pitches), we see that LeBlanc has a pretty standard release point, with almost all of Cole Hamels, Jon Lester, CC Sabathia, Madison Bumgarner, Hyun-Jin Ryu, and David Price's pitches falling in this range. If we look at his average release point (6.24 tall, 2.04 feet to the side), Hamels, Scott Rice, and Rex Brothers are the closest comparisons. Those three pitchers are all better against lefties than righties, so release point has nothing to do with his reverse splits. The locations of his pitches might: