I think you're on to something important here - the word "efficiency" is used to describe optimization in two different mental regimes: one, "how to meet a give

I think you're on to something important here - the word "efficiency" is used to describe optimization in two different mental regimes: one, "how to meet a given quality of work with the minimum of friction/wastage" vs two, "how to perform the maximal work within a fixed resource allocation." They sound similar, which is probably why we use the word "efficiency" to describe improvements in both regimes, but the fundamental constraint is different: in the first case, it's the standard of work that must be achieved; in the second, it's the resources allocated to the work. I'd summarize the first "do enough with enough" and the second as "do more with less." What you describe sounds like "doing enough with enough:" given the work to be done, how can we remove resource-draining obstacles, idle loops, etc. and identify "what the work really should be?" - is that a fair assessment or am I off the mark?