Knows what’s possible

This requires skill and effort. Usually present in people who have done the job before (or similar work). If you know what is possible, and the high-level work that is associated with what you are asking people to do, then things will move much smoother. Ideally, you could do the job yourself if necessary.

You can never predict how long something will take

Personal connections can inspire much more in a shorter time

If you can make a personal connection with the people you are leading, this can allow you to get a lot more done in a shorter time.