The problem hasn't been solved yet, but the Yankees have an idea on what's wrong with their ace. Prior to New York's 7-1 win over the Royals at Kauffman Stadium on Tuesday night, Masahiro Tanaka and his translator spent some time with pitching coach Larry Rothschild in the visiting clubhouse, discussing reasons why the 28-year-old's signature splitter and sweeping slider hasn't lived up to anyone's expectations.