“Well, in his experience, soldiers spent little time doing soldier things. They instead spent ages walking places, waiting around, or—in his case—getting yelled at for walking around or waiting in the wrong places.”
-Oathbringer by Brandon Sanderson
I think most jobs are like this. We rarely push our skills to their limits, and we spend most of the time at work doing routine stuff. This can be boring but it can also be used to replenish our energy and improve ourselves. It is not sustainable to always be on our toes, always creating, and always stressed. The challenge comes when we spend too much time in the routine or too much fun stuff that pushes our limits. One leads to stagnation and the other leads to burnout.
You can’t compare sports to normal work but if you look at elite athletes they spend at lest 90% of their time practicing and 10% competing. I admire their commitment, willpower and grit. Their amazing achievements comes from spending so much time training for one thing.
It would be very expensive for everyone to practice the same way in most organizations. But I think most companies need to focus more on making sure everyone learns and develops more during everyday activities and continues to push themselves to become better at their jobs.