Aaron Boone: What makes Didi Gregorius’ Yankees exit painful

The Yankees are spending plenty of dollars this offseason. They just weren’t earmarked for Didi Gregorius. The shortstop seemed to know as much, saying Monday during his introductory Phillies press conference that Yankees general manager Brian Cashman “made it loud and clear that [Gerrit] Cole was their priority.” Cole landing a record nine-year, $324 million…