You Always Improve What You Track.
A good written goal always has the challenge of being measurable. Subjective feelings are good for gut reactions in the moment but they are not as useful when tracking a goal over time. We avoid objective measurement for the same reason we avoid accountability. We would rather feel good than get better and face the bitter truth. A goal is measurable when we can track it numerically over time. This can include a percentage or total number but it must be an objective measurement.
The whole reason for setting a goal is to improve an important target area within the team. We know we have chosen an objective measurement when we have clearly broken down the “what” of the goal into the parts that make up the “how”.