The Navy was in charge until the troops were landed on the beaches, then the Army took control of the troops on the beaches. The landing craft crews had their orders from the Navy, which was to land the troops.
Was it cowardice not to land the troops or to find a safer spot. Good question when at Omaha live troops were needed a shore and dead troops did no good. One additional factor was that the tides and smoke ended up affecting where the landing craft put ashore, they could not see their guide points on the beach due to the smoke and were being moved off course by the current. Some groups of soldiers lived and fought to the top of the clifts that day due to landing in the ‘wrong place’.
Thank you, sir. I think this is the answer to my question.