Most people today still believe, perhaps unconsciously, in the heliocentric universe every newspaper in the land has a section on astrology, yet few have anything at all on astronomy.
I love rehearsing because in rehearsals there are no mistakes, nothing is wrong, some things apply or lead you to focus on the character and the things that don't apply are equally valuable because they lead you to towards what does.
When you experience a failure as a leader, don't hide it - talk about it. Your missed opportunity will encourage others to take risks.