A raw gem of a righthander from Hartsville High School in South Carolina, Lyles is the sort of big strong power pitcher that the Astros always love to gamble on. And gamble they did when they took him so high in the 2008 draft (38th player overall). He's got incredible stuff, including a hot and lively fastball that should burn through the lower minor leagues, but he's going to need to improve his offspeed pitches to move beyond that. He has front-line starter potential, but it'll be a couple of years before we know how likely he is to reach it.