It is important to consider is the topic of Succession Management. If organizations don't identify future leaders and train and mentor them for promotion, they will have no choice but to go outside for talent. That makes it both costly and short sighted as well as increases turnover of the younger workers that are not getting appropriate career development. Good leadership development and succession management programs can be very effective in increasing retention of the future leaders in an organization.
What type of succession programs do your orgs have?