Companies face a challenge when it comes to planning the program's curriculum. Adults typically retain only 10 percent of what they hear in classroom lectures, but nearly two-thirds when they learn by doing. 

The answer seems straightforward: tie leadership development to real on-the-job projects. While it is not easy to create opportunities that simultaneously address high-priority needs, companies should strive to make every major business project a leadership-development opportunity as well.

Becoming a more effective leader means addressing and changing underlying mindsets. It often requires identifying some of the deepest thoughts, feelings, assumptions, and beliefs that are too often sidestepped in development programs.

For example, successful adoption of the value of delegation and empowerment is unlikely if the program participants have a “controlling” mind-set.

Many companies understand the importance of developing leadership skills but do not quantify the value of their investment.

Evaluation of leadership development can include:

• Participant feedback that includes set targets.
• Assessing the extent of behavioral change. Perhaps by a feedback exercise at the start of the program and again 12 months later.
• Monitoring of participants' career development after the training.
• Monitor the business impact. It might include cost savings or increased sales. Or, comparing the average productivity of participants' teams before and after a training program.