Final answer:
The War Industries Board, led by Bernard Baruch during World War I, holds the overall responsibility to ensure the War Reserve Materiel (WRM) outload is properly coordinated, leveraging its power to control industry production to meet military requirements.
Step-by-step explanation:
The main responsibility for ensuring that the War Reserve Materiel (WRM) outload is properly coordinated falls to the War Industries Board, which was established during World War I and headed by Bernard Baruch. The Board was empowered with significant control over industries to ensure adequate military supplies were produced and efficiently allocated to meet wartime needs. The coordination process included managing production schedules, allocating raw materials, and ensuring the logistical processes were in place to support military operations.
The government's power to direct shipping and control contracts with private firms, as well as to seize private enterprises in the case of inefficiency as described with the handling of the Smith and Wesson factory strike, underscores this overarching responsibility. Moreover, the historical precedence set by committing resources to a Defense National Stockpile Center indicates the extensive approach taken to guarantee the availability of necessary materials in times of armed conflict.