; (E) resolve classified access and infrastructure challenges; (F) foster a workforce and organizations that are innovative, creative, and provide high-quality strategic decision support; and (G) conduct such other tasks as the Secretary of Defense considers appropriate. (f) Rule of construction Nothing in this section shall be construed to interfere with the requirements of the Chiefs of Staff of the Armed Forces to establish military requirements, performance requirements, and joint performance requirements, or the requirement of the Joint Requirements Oversight Council to validate such requirements under section 181 of title 10, United States Code. 904. Roles and responsibilities for components of Office of Secretary of Defense for joint all-domain command and control in support of integrated joint warfighting (a) In general The Secretary of Defense shall establish the roles and responsibilities of components of the Office of the Secretary of Defense for development and delivery to combatant commands of capabilities that are essential to integrated joint warfighting capabilities, as follows: (1) The Deputy Chief Technology Officer for Mission Capabilities of the Office of the Under Secretary of Defense for Research and Engineering shall be responsible for— (A) identifying new technology and operational concepts for experimentation and prototyping for delivery to the Joint Force to address key operational challenges; (B) providing technical support for the Joint Force in exploring and analyzing new capabilities, operational concepts, and systems-of-systems composition, including through advanced modeling and simulation