Tyler Glasnow is now 6' 8", 220 pounds and hits 96 MPH with his fastball.
The Pittsburgh Pirates have spent about $9.5 M from 2008-2012 on middle round prep pitchers. The majority of them have been the same: tall, skinny pitchers with fastballs in the 88-92 MPH range, and hopes that those velocities could increase once the pitchers started filling out their tall, skinny frames.
It's not a totally uncommon story. You don't have to go back far in draft history to find pitchers who greatly improved their stock from the point they graduated high school to the point where they were eligible for the draft as a college junior. Stephen Strasburg is probably the most famous story of a pitcher improving his stock. He went from undrafted out of high school to one of the best draft prospects ever following his junior year. Mark Appel was a 15th round pick in 2009, then went on to become the top draft prospect two years in a row. David Price was a 19th round pick in 2004, then was taken first...
Tim is the owner and editor in chief of Pirates Prospects. He started the site in January 2009, and turned it into his full time job during the 2011 season. Prior to starting Pirates Prospects, Tim worked with AccuScore.com, providing MLB, NHL, and NFL coverage to various national media outlets, including ESPN Insider, USA Today, Yahoo Sports, and the Wall Street Journal. He also writes the annual Prospect Guide, which is sold through the site. Tim lives in Bradenton, where he provides live coverage all year of Spring Training, mini camp, instructs, the Bradenton Marauders, and the GCL Pirates.