With an attempt to avoid repeating KATSURA's folly, YAMAMOTO made concessions to political parties by easing the Military ministers to be officers on active-duty rule (the rule stipulated that only generals and lieutenant generals on the active could serve as ministers of the army and navy, however, in order to increase the political parties' influence over the military, Yamamoto opened these ministerial posts to military men on reserve duty and those on the second reserve duty as well.
山本は桂の二の舞を演ずることを避けるため、軍部大臣現役武官制を緩和（陸海軍の大臣は現役の大将・中将から出すこととなっていたが、山本は政党の軍部に対する影響を強めるために、予備役や後備役にまで拡大した）して政党に譲歩した。