After taking high school OF/1B Christian Yelich with their first-round pick (23rd overall), the Marlins had to wait until the 73rd pick in the draft for their second-round selection, left-handed pitcher Rob Rasmussen out of UCLA. Not the biggest guy in the world (he stands 5-11).
Go here to see what they say about Rasmussen at Baseball Beginnings. The link also includes video footage of the pitcher in action. Baseball America ranked Rasmussen eighth among left-handed pitchers eligible for the draft, but also regarded him as a "third/fourth-round talent."