Stupid Japanese. I'm reading a history of the IJN.
The plant that made the Zero used oxen to haul the planes to the nearest airfield 20+ miles away. When the oxen got old, they used percherons. Building an airfield at the plant never occurred to them.
Their original naval aviators were basically kids on the PHD track in high school. Over 90% washed out because training was so harsh. They would literally beat them.
The aviators would be put on the front lines forever. Never rotated back to train others or allowed to get rest. And no plan to replace lost pilots. The aviators were not systematically interviewed on how to make things better.
The Navy had both officers and enlisted flying planes. The enlisted would come back after flying then made to stand watch, do KP, shine the officers shoes, etc. The officers were arrogant pricks who could not fly yet made all the decisions.
Every time senior IJN leadership would plan an operation but not validate their assumptions. Senior leaders were not visiting every base constantly.
The IJN had a habit of not focusing on the goal of the operation. They did it over and over and over again. At Pearl Harbor, they did not follow ups with a third or fourth strike or bombard Pearl and the US installations. As a result the dry docks, harbor facilities, runways, construction equipment, fuel depot, and stores were all intact. The IJN always got cold feet. The Indian Ocean raids, Guadalcanal, Battle of Philippines - and many others - the IJN did not go for the jugular.
A lot of other Americans when war-gamed Pearl, would have had the heavy battleships empty their magazines into Pearl with the planes flying CAP. Pearl was the main base of the US in the Pacific - I would have landed a Division and taken it. Razed it.