SRL for [fortified]: Major League baseball 's National League champion New York Mets [fortified] their teams ' leadership on Tuesday by resigning Manager Bobby Valentine and General Manager Steve Phillips .
ARG-0: Major League baseball 's National League champion New York Mets | ARG-1: their teams ' leadership | ARG-M-TMP: on Tuesday | ARG-M-MNR: by resigning Manager Bobby Valentine and General Manager Steve Phillips