35 Jarrod Parker RHP LEVEL: A (South Bend) 20 Parker continues to look like one of the best picks in the first round of 2007, one that right now appears to have been historically deep in teenaged arms. Parker has grown since high school, so questions about his height should be gone, as he's a legit 6-foot-1 and has filled out as well. He'll still sit 94-95 and bump 98, but it's the four-pitch mix that sets him apart from other flamethrowers, especially as his changeup has come on -- not a pitch he needed often in high school -- and will even flash above-average. The slider remains his out pitch with hard, late tilt. He's a great athlete with good feel for pitching given his age and relative inexperience, and he commands all four pitches he throws. His main weakness is that his fastball lacks movement, and he's likely to be a fly ball pitcher headed toward a big-league park that converts fly balls into home runs with alarming regularity. He heads to the Cal League in 2009, which should be a good test of his fastball command and ability to mix his pitches to avoid having hitters sit on the heat. 75 Daniel Schlereth LHP LEVEL: A (South Bend) 22 If Schlereth is healthy this spring, he'll get to the big leagues this year, because he has now stuff, and his history of arm trouble means that the Diamondbacks will be motivated to start extracting value from him sooner rather than later. Schlereth has two plus-plus pitches in a mid-90s fastball that will touch 97 and a nasty slider with a long, hard break that can get left- and right-handed hitters out. His delivery is max-effort with terrible recoil, and he's already had Tommy John surgery and then had more arm soreness after he was drafted last June. Nothing is certain when it comes to pitchers getting hurt, but Schlereth is higher-risk than most in that department; the good news is that because his stuff is just toxic to hitters, it will be fun while it lasts. 91 Gerardo Parra OF LEVEL: AA (Mobile) 21 Parra has good hands and takes a short path to the ball, hitting to all fields and making solid adjustments to off-speed stuff. He's a plus glove in a corner outfield spot with a 65-70 arm, and should be at least average in center. As a center fielder, he should be an everyday player because he'll hit for average and get on base, but if he has to move to a corner for any reason, his lack of power will be a problem. He's short to the ball but his swing plane is very flat and he has no loft in it, resulting in a lot of ground balls but not enough power. That's not an easy adjustment to make to a hitter's swing, but it's not impossible, and Parra is strong enough to hit 20 homers in the big leagues if his swing would permit it. The defensive value will get him there regardless. --

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