David Robertson and Max Scherzer’s former teammates are left to wonder who’s next to exit for the New York Mets. “That’s a natural inclination for sure,” first baseman Pete Alonso said late Saturday night, after the Mets lost 11-6 to the Washington Nationals after agreeing to trade three-time Cy Young Award winner Scherzer. The deal, which a person with knowledge of the details said would send Scherzer to the AL West-leading Texas Rangers, was reported in the first inning, which ended with Washi