This government file details a justification for not pursuing full and open competition, citing statutory authority under 10 U.S.C. 3204(a)(1) and FAR 6.302-1(a)(2). The rationale is that Northrop Grumman is the sole capable source for the required services within the specified timeframe, supported by market research (RFI MDA21BCRFI02) that found other respondents unsuitable. The document highlights Northrop Grumman's unique qualifications as the incumbent, having led significant prior work and possessing extensive knowledge from a 15-year, $700M investment. Transitioning the work to another contractor would negatively impact cost, schedule, and performance due to the need for extensive knowledge acquisition. The government will ensure fair and reasonable costs through price analyses and reviews. To promote future competition, the DE Program Office is transitioning to a Scaled Agile Framework, modernizing the code base with a Modular Open Systems Approach, and investing in automated testing with appropriate data rights for potential future transitions.