Every now and then I remember a management practice that I discovered years ago playing in rock & roll bands. (You may be unaware that rock groups are incubators for highly sophisticated behavioral development techniques!)
I forgot about this until I came across a terrific new book—An Everyone Culture: Becoming a Deliberately Developmental Organization. In it authors Robert Kegan and Lisa Laskow Lahey mention, almost in passing, an important principle of leadership development: “Continuously develop authority downward.” (This book will get a separate post soon to deal with its more important and controversial thesis that "people development" is the whole point of business!)
Developing authority downward is a message I've been preaching for decades, along with its corollary: "Do yourself out of a job." Train and coach others to do what you do, better than you do it! (Of course this doesn't fit every situation, but it should apply to nearly every manager or supervisor in a growing company.) If you get really good at giving your job away, you will almost certainly earn a new job that pays more and provides new ways to grow.