What Mets and Yankees would have to swallow for Syndergaard or deGrom deal

Brian Cashman wanted to trade Robinson Cano in his 2013 walk year. The same with David Robertson the following season. Not until 2016 did his bosses fully buy what the Yankees GM was selling — that modern rosters must be young, deep, versatile and financially flexible, and that maintaining George Steinbrenner's model of never taking...