The New York Mets filled another vacancy on Mickey Callaway’s coaching staff, hiring Ruben Amaro Jr. as their new first base coach, Ken Rosenthal of the Atlantic reports. Amaro, 52, spent last season in a similar role with the Boston Red Sox. Prior to joining the Red Sox, Amaro served as the General Manager of the Philadelphia Phillies from 2009-2015. Amaro will replace Tom Goodwin, who departed for the Red Sox as Amaro’s replacement. The Mets are now a bench coach away from completing Callaway’s coaching staff as Amaro joins Dave Eiland (pitching coach), Ricky Bones (bullpen coach), Glenn Sherlock (third base coach/catching instructor) and Pat Roessler (hitting coach).