Public-service executives, both elected and appointed within the public and nonprofit sectors, are retiring at record levels, and the number of Americans reaching age sixty-five annually will continue to rise over the next decade and is expected to surpass four million in 2020. Finding qualified, motivated leaders to fill vital public-service positions will challenge the public and nonprofit sectors.

Unfortunately, recent studies show that few proactive steps are being taken by public-service organizations to plan for the next generation. Passing the Torch: Planning for the Next...