I found this insightful for anyone who has lots of urgent and important tasks to get done and decisions to make and lots of people to keep happy, yet who also has many other personally conceived projects to pursue that no one else is going to follow up on. There's a real skill to balancing getting everything done you need to, as well as can be done, while still not expending all your efforts and mental energy on established projects and on reacting to external events, and instead reserving some of your time and energy for new projects; or, not letting day-to-day operational competence squeeze out meaningful pursuit of vision.