Leaders must provide the kind of favorable environment that allows others to grow in a healthy and vigorous way, to flourish. How?
1) Encourage creativity. Enforcing a one size fits all or the cookie-cutter approach to development stifles the minds of those who have much to offer if allowed.
2) Allow others to spread their wings and try. Mistakes may be made and there will be accountability, but we might be surprised at what flourishes when an opportunity is given.
More could be said, but you get the idea. Leaders need to flourish and promote the same in others.