LHP Daniel Gibson
The D-backs selected Gibson in the seventh round of the 2013 First-Year Player Draft, and he had a combined 1.56 ERA in 53 relief appearances this year for Class A Visalia and Double-A Mobile.
Bell's take: "He's been an interesting left-hander out of the bullpen since we've had him. The most impressive thing is, he was able to do it consistently throughout the year in just every facet of what it means to be a professional. He took care of everything that he could control and his talent took over. He's not a gimmick pitcher.