Service is notoriously hard to measure. This is true for every type of service: checkout clerks at Walmart, geeks at Best Buy, and nurse-midwives. And it’s doubly true when the desired result is fuzzy, controversial, or unstated, as it often is for clergy, educators, organizers, or musicians working in a church or synagogue.
When the job is helping other people, measurement is difficult. That’s why you’re so often asked to fill out an evaluation after you get service online or by phone. Employers—who tried for years to measure service work with the same stopwatch-and-clipboard methods factory managers used a hundred years ago—have realized it doesn’t matter how much time it takes to serve a customer if the result is that the customer posts negative reviews all over Yelp.