Prior to his time in Toronto, Mangan was a scout for the Reds from 1994-98.
The Pirates lost two prominent members of their front office earlier this fall, when Marc DelPiano and Jim Benedict joined the Marlins. In their place, the Pirates promoted pro scout Ron Hopkins and national supervisor Matt Ruebel to the role of special assistant to general manager Neal Huntington.
Adam Berry is a reporter for MLB.com. Follow him on Twitter at @adamdberry. This story was not subject to the approval of Major League Baseball or its clubs.