Japan recognised the escort shortage, developed suitable technology and began building ships to address it. Delivery lagged behind the operational need. Expectations that more time would be available persisted even as the programme fell behind. Escort doctrine and useful designs existed, but the force arrived too late and in insufficient numbers. The criticism concerns the delay between identifying the requirement and meeting it.
Notable Point · 57:29-58:58
Recognising the escort problem without solving it in time
Japan recognised the escort requirement and developed useful ships, yet failed to deliver enough of them before the operational need became acute.