It is the crux of supervision:
supervisors achieve results through those they supervise
and employees need a good supervisor to be great.
And yet, we invest so little time in helping those new to supervision develop the skills necessary to become a great leader of their team. Most organizations assume that if you can do the work, you can also lead those who are doing the work.
Don’t confuse the two. Supervision requires a skill set on to itself. If you have responsibility for a staff, (and especially if you have leadership of staff who has their own staff), continually develop your knowledge in this area to make it a good experience for all of you.