You may want to take a look at David Allen's concepts of 'Horizons of Focus', e.g. [here](https://search.brave.com/search?q=david+allen+horizons+of+focus&source=desktop&conversation=1a20f98c0867c750408f33&summary=1) or [here](https://gettingthingsdone.com/wp-content/uploads/2014/10/2016-Levels-of-Your-Work.pdf).