The stronger manpower case for scrapping old battleships

What were the advantages and disadvantages of scrapping the older ironclad battleships?

Scrapping labour-intensive old battleships saved manpower, but comparable reserve cruisers could still supply useful wartime hulls without tying up active crews.

Old ironclad battleships could be expensive in manpower, giving Fisher a more persuasive case for removing them. Many older cruisers used broadly comparable crews to newer cruisers and were often already in reserve. Reserve ships did not consume full active crews in peacetime and could be mobilized with trained reservists. Removing them reduced the pool of hulls available when a war suddenly demanded more escorts and patrol ships.