The Spacenews.com article Sirangelo leaves NASA after exploration reorganization scrapped says:
WASHINGTON — A former space industry executive who joined NASA to guide its revamped lunar exploration strategy has left the agency after just a month and a half.
In an internal memo May 23, NASA Administrator Jim Bridenstine announced that Mark Sirangelo had stepped down as a special assistant to the administrator after a proposed reorganization of the agency was rejected by Congress.
That reorganization would have created a “Moon to Mars Mission Directorate” incorporating parts of the existing Human Exploration and Operations Mission Directorate (HEOMD) and Space Technology Mission Directorate. Bridenstine announced plans to create the directorate in March, when Vice President Mike Pence set the goal of landing humans on the moon by 2024, saying it would “focus on the formulation and execution of exploration development activities.”
Question: What information (if any) is available about the nature of the proposed directorate? Was it to have been a "second NASA" reporting to the US government, or would it likely have reported directly to the "main" NASA