Pittsburgh Pirates General Manager Neal Huntington has done a very good job lately of drafting. Early on in his tenure as General Manager, Huntington was criticized for his drafts. However, since 2010 he has seemed to find multiple good prospects in each draft. His drafts have seemed even better since the league instituted the draft bonus rules. One area that he has really drafted strong has been high upside prep pitchers. On this list, there are two prep arms from last years draft.
Also, as noted before, the Pittsburgh Pirates have done a solid job of finding talent in the international market.