Could Japan have improved its naval infrastructure before the Pacific War?

How might Japan have improved its World War II naval infrastructure before the war?

He would start by giving himself the authority to implement Yonai's plan for reforming the Japanese Navy; it would not stop the war, but would make it less straightforward.

The counterfactual begins by granting enough authority to implement Mitsumasa Yonai's programme for reshaping the Japanese Navy. This would not prevent war, but it could make the conflict less straightforward for Japan's opponents. Naval effectiveness depended on the infrastructure and policy behind the fleet. Reform could therefore alter the difficulty and character of the conflict without providing a way around it.