"The quality of British strategic decision-making was also vital. As is his due, Churchill is still remembered on both sides of the Atlantic as the saviour of his nation and the architect of the Allied victory. But if Churchill had enjoyed the same untrammelled power as Hitler, he might well have lost the war, so erratic were his strategic judgements. It was the limitation of Churchill's power that was Britain's greatest strength - the fact that the other members of the British Chiefs of Staff Committee, notably Brooke, were able not merely to disagree with 'the old man', but frequently to dissuade him."
January 1, 1970
https://en.wikiquote.org/wiki/Alan_Brooke%2C_1st_Viscount_Alanbrooke