I agree with your comment. These names are just ways for teams to delegate different responsibilities w.r.t incident management quickly and in a way that's unde

I agree with your comment. These names are just ways for teams to delegate different responsibilities w.r.t incident management quickly and in a way that's understood by everyone. Having concrete names for such roles is both a good thing (everyone knows who can make the call for hard decisions) and helps you talk intelligently about the evolution of such roles. e.g. "our Incident Commanders used to spend 15% of their time in p0 incidents, but that has reduced to 10% due to improvements in rollout procedures/runbooks/etc."