Comment by utbabya

Metrics for things like FCP, better screenreader and refactor are less straightforward so having the capability to correctly evaluate the cost and benefits, making the right judgement calls and communicating it to everyone is vital.

Not mentioned in the article but this implies the importance of hiring. Having the right people to build the culture together, sitting in the room to discuss the priority of these things can turn a filibuster popping clown fiesta into productively working out actual competitive advantages for the company.