Deputy Secretary of Defense Memorandum: Provides final decisions that address open issues related to acquisition roles and responsibilities and incorporates the changes in the Fiscal Year 2020 National Defense Authorization Act (NDAA). The seven final decisions covered in this memorandum are Milestone Decision Authority (MDA), Acquisition Strategy Approval Authority, Middle Tier Acquisition (MTA), OSD role in MTA, Independent Technical Risk Assessments (ITRA), Data Transparency, and Test and Evaluation Master Plans (TEMP).