Learning to be a PhD advisor
We professors usually start our jobs unprepared. In our days as students, we are considered talented if we can solve problems posed by our professors. We might be even considered brilliant if we can solve them quickly and make a few extensions. After solving a few such problems, we write a thesis. We are then entrusted with a job as a professor. We soon realize that the skill of solving problems posed by others only plays a minor role in our jobs.