But there was still far to go in the integration of brain and brawn.
The Admiralty was the most flexible in this regard, but they laboured under the difficulty that while a year before there had been too little information, in mid-1941 they were swamped by its abundance.
The OIC could not cope with the new era, in which a vast German system had to be mirrored by a British one.
It had been a revolutionary innovation to place a civilian, a barrister called Rodger Winn, in charge of the OIC Tracking Room at the end of 1940, replacing an ancient naval Paymaster.
It was through the mind of Winn that the output of Hut 8 had to be translated into action.
Fortunately it was an imaginative mind, one which suggested forecasting where the U-boats were going to be, in time for the convoys to dodge them.
Despite great initial resistance, towards the spring of 1941 this entirely novel idea was 'beginning to gain acceptance'. Winn considered that
it was worth while to 'have a go'.
If, as he subsequently said, one beat the law of average (sic) and was right only fifty-one per cent of the time, that one per cent, in terms of lives and ships saved, or U-boats sunk, was surely worth the effort.