The broadcaster also refused to disclose any star's salary details in later written submissions.
Rivera asked for $9.25 million in salary arbitration, while the Yankees' submission is $7.2 million, a huge gap that could lead to arbitration.
Unlike Salary.com, they get their data through user submissions instead of company survey data.
NHS Employers had argued this should have continued into 2014-15, saying itsitsubmissionon on pay that salaries in the health service remained "competitive".
The Yankees noted that Hoffman's actual salary for this year is $6.75 million, and under the Yankees' submission, Rivera would be paid $500,000 more than Hoffman this season.
As talks resumed this time around, the Yankees offered a three-year, $27 million deal, not budging from the $9 million annual salary they offered last winter, nor from the $9 million arbitration submission they made last week.
First, the issue of submissions, as with similar questions about gender and salary negotiations or gender and career management, is nuanced, complicated and as mediated by gendered expectations and behavior as anything else.
Submissions to its review by MPs suggest that members believe their salaries should rise by a third to more than £86,000.
