Who could remove Mussolini after a greater naval disaster?

Who could topple Mussolini internally after the defeats imagined in the larger-Taranto scenario?

The king and well-connected senators are identified as potential opponents, with Germany's ability to intervene constrained by preparations for Barbarossa.

A follow-up asks who within Italy could topple Mussolini after the military disasters imagined in the larger-Taranto scenario. The king and influential senators are proposed as opponents whose connections gave them room to criticize him. Losing the fleet and North African empire, alongside dependence on German help in Greece, could make the regime look weak to those domestic opponents. German intervention would require forces while Hitler was preparing to invade the Soviet Union. The discussion therefore treats an Italian crisis in 1941 as a possible conflict with preparations for Barbarossa, while rejecting the assumption that Hitler would simply postpone that invasion. Both the early fall of Mussolini and the German response remain counterfactual possibilities.