Baker will visit Minor League affiliates to work with players on and off the field, and he will evaluate amateur players leading up to the 2016 Draft in addition to spending time around the Major League club.
Baker played seven big league seasons with the Marlins (2008-11), Padres ('12-13) and Cubs ('14) before finishing his career with a 17-game stint in '15 at Triple-A Tacoma, a Mariners affiliate.
Adam McCalvy is a reporter for MLB.com. Follow him on Twitter @AdamMcCalvy, like him on Facebook and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.