Wow, that's a pretty outstanding trade considering they had to get rid of him. Surprised they were able to get this much. Giles was one of the best relievers in the game and gives them an actual closer again. Perez, according to Fangraphs, is Houston's 5th best prospect. Paulino is youngish (24) minor league depth.
5. Hector Perez, RHP
Signed: July 2nd Period, 2014 from Dominican Republic
Age 21 Height 6’3 Weight 190 Bat/Throw R/R
Tool Grades (Present/Future)
Fastball Slider Curveball Splitter Command
60/70 50/60 45/50 40/55 30/45
Perez wields electric stuff but is a maddeningly inconsistent strike-thrower. His ability to work with any kind of efficiency began to wane after a dominant April and May, and worsened as the season aged into the summer. Perez doesn’t have great feel for a regular release point, and his pitches sail or spike well short of the plate. This glaringly inhibits Perez’s ability to throw strikes and also dilutes the quality of his secondary stuff. He’s well built, explosive, and appears to be athletic, so there’s hope that this will improve with time.
Even if Perez grows into 40-grade control, he’s probably a dominant reliever at that point because he has four plus-flashing pitches. His fastball sits in the mid-90s, touches 98, and you could argue it plays up because hitters don’t see the ball out of Perez’s hand very well. He blew it past hitters up in the zone much of last year and it projects as a plus-plus pitch, especially if Perez is moved to the bullpen. He also has a plus-flashing slider that has cutter action at the knees and above, but downward bite beneath the strike zone. The latter is much more effective. Perez’s split-change flashes plus but too often tumbles in well beneath the strike zone and doesn’t entice hitters. Perez’s spike curveball misses bats, too, and he flips it in for called strikes at times, but he doesn’t get on top of it consistently. If he can find some semblance of mechanical consistency, all four pitches could be dominant. If not, he’ll be a frustrating relief piece. The likely outcome is somewhere in the middle.