Team member says they are feeling less creative because their kid is having bullying problems in school.
"Can't measure the creativity, can't measure the bullying... Can't manage this situation, sorry"
To put it differently—measure what you can; trust your feelings on the rest.
You can measure many, many things. Instead, you should measure things whenever they are good proxies for the outcomes you want to drive AND there is good cost benefit in measuring+analyzing them.
Surprisingly few things meet these criteria.
I was simply pointing out that many situations can't be solved through metrics. In my experience, the best managers try to solve most problems without metrics, but always insist on them in places where they are valuable.
In other words, they use metrics as a tool and make metrics work for the team instead of the team work for the metrics.