Following the Armistice, Ryan resigned on November 27, leaving both the BAP and DMA, as well as the original Aircraft Board, leaderless. In addition certain powers, primarily those of dealing legally with the government-owned Spruce Production Corporation, had been delegated to Ryan by name, not to his position as Director of Aircraft Production, and as such could not be legally conferred on any successor. Maj. Gen. Charles Menoher was appointed to the vacancy on January 2, 1919, but the patchwork nature of laws and executive orders that had created the various parts of the Air Service prevented him from exercising all their legal powers and ending the unity of command problems caused by dual authority.