Historical commanders running the modern British Army

What would happen if Churchill, Kitchener and the third historical commander named in the question ran the British Army today?

The imagined arrangement gives military administration to the two professional commanders and public advocacy to Churchill, with substantial friction expected.

The third commander's name is unclear in the captions, so the comparison cannot securely identify him. That commander is expected to take the lead through greater bureaucratic and political skill, with Kitchener as deputy or chief of staff. Churchill is assigned the public-facing role of speeches and political persuasion. The predicted arguments are a character-based counterfactual, not a claim about a workable modern command appointment.