BLUF: This post continues the description of the high workload on the Bridge before the collision of the USS JOHN S MCCAIN (DDG 56) with Motor Vessel ALNIC MC on 21 August 2017 in the Straits of Singapore. The series is devoted explaining key concepts of HRO in context. The prior post emphasized the attention an OOD must devote to the environment external to the ship. This post describes the internal focus the OOD has to maintain as well (post 9g).