Original sentence: The Association of California School Administrators also voiced concerns about the audit and said that the auditors did not appear to understand the role of the principal or the goals of the school.. Later UCSD Vice Chancellor Paul Drake said on National Public Radio (NPR) that in the audit "they were never able to exactly prove who had done what or why"
Edited sentence: The Association of California School Administrators also voiced concerns about the audit and said that the auditors did not appear to understand the role of the principal or the goals of the school.. Later UCSD Vice Chancellor Paul Drake admitted on NPR that  in the audit " they were never able to exactly prove who had done what or why"