Luciano is a live-armed 18-year-old Dominican righty who spent most of 2017 in the DSL, then came to the U.S. in August for a month of Rookie-level ball, then instructional league. I saw him during instructs when he was 90-94 with an average curveball, below-average changeup, and below command, especially later in his outing as he tired. He was an honorable-mention prospect on the D-backs list.
His velocity has mostly remained in that range this spring, topping out at 96. Luciano’s delivery has been changed to alter his glove’s location as he lifts his leg, probably to help him clear his front side a little better. He’s still had strike-throwing issues and might be a reliever, but he has a live arm and can spin a breaking ball. Though 18, Luciano’s frame doesn’t have much projection, so while he might grow into some velocity as he matures, it probably won’t be a lot. He’s an interesting, long-term flier who reasonably projects as a back-end starter.
As for Speier, he’s repeating Double-A. He’s a sinker/slider guy, up to 95 with an average slide piece. He projects as a bullpen’s second lefty and should be viable in that type of role soon.
Eric Longenhagen is from Catasauqua, PA and currently lives in Tempe, AZ. He spent four years working for the Phillies Triple-A affiliate, two with Baseball Info Solutions and two contributing to prospect coverage at ESPN.com. Previous work can also be found at Sports On Earth, CrashburnAlley and Prospect Insider.