Prince Louis of Battenberg as wartime First Sea Lord

What changes if Prince Louis of Battenberg remains First Sea Lord throughout World War I?

The Admiralty may become more deliberate and coordinated, especially at the Dardanelles, but less forceful in public politics.

Battenberg's experience as head of naval intelligence makes him a plausible wartime First Sea Lord in this counterfactual. Compared with Fisher, he is described as less effective in public speaking and less able to manage Churchill, but more deliberate and less confrontational. His organizational experience could help him resist a naval attack on the Dardanelles before troops were ready. Waiting for a combined operation would avoid warning the Ottomans through an earlier naval attack. That coordination is offered as a possible route to success, not a guaranteed outcome.