Go one step further; what are the metrics trying to measure? Who set those metrics and why? What are the smallest number of actions needed to deliver value to

Go one step further; what are the metrics trying to measure? Who set those metrics and why? What are the smallest number of actions needed to deliver value to the folks who provide revenue to the company? Effective developers know the answers to those questions. What else they do is quite varied, and some effective developers care about things like "should we use lodash or not?" But other effective developers don't. I didn't say "only successful people" do anything. What I said was you don't have to care about how lodash works or be concerned about importing it vs. rolling your own to be an effective developer.