http://www.baseballamerica.com/minors/top-100-prospects-tools-2/#SoTEfm3e6UilSTQF.97 Thought it was interesting that his arm is rated as his best tool. He has a career CS% of 34%, though this year it's just 24%. If it's not his arm, it might be his footwork. Whatever it is, appears he's not great (nor horrible) at controlling the running game. Edit: MLB average CS% this year is 28.8%, which is a few points lower than I thought it was. I'll call his arm above average, footwork below average, and call it a day.