Afterward, pitching coach Brent Strom told Rosenthal: “I’ve got to hand this to our analytics people. “They said, ‘Listen, this is where we’re making our mistakes. We need to throw as many curveballs as possible. This is a good fastball-hitting team.'”
And he got lit up like a Christmas tree in his two games against the Yankees this year.
As to this being anything new, it's not. Teams have kept those kinds of records for decades.