; or (2) has significant experience managing an enterprise in the private sector. (b) Department of the Navy An individual may not be appointed as Deputy Chief Management Officer of the Department of the Navy unless the individual— (1) has significant experience in business operations or management in the public sector; or (2) has significant experience managing an enterprise in the private sector. (c) Department of the Air Force An individual may not be appointed as Deputy Chief Management Officer of the Department of the Air Force unless the individual— (1) has significant experience in business operations or management in the public sector; or (2) has significant experience managing an enterprise in the private sector. 924. Expansion of principal duties of Assistant Secretary of the Navy for Research, Development, and Acquisition Section 5016(b)(4)(A) of title 10, United States Code, is amended by striking and acquisition matters and inserting acquisition, and sustainment (including maintenance) matters . 925. Cross-functional teams in the Department of Defense (a) Establishment of certain teams (1) In general Among the cross-functional teams established by the Secretary of Defense pursuant to subsection (c) of section 911 of the National Defense Authorization Act for Fiscal Year 2017 ( Public Law 114–328 ; 130 Stat. 2345