Successful social entrepreneur and non-profit leader Todd Guckenberger introduces the concept of the "6 C's" of core leadership skills: Competency, Community, Communication, Collaboration, Clarity, and Capacity.

What do you need to do? How well do you understand it? How clear is it to other crucial members of your team? If you don't know, or if it's not clear, then what do you do next? Leadership clarity is a crucial skill.

To achieve great things, we usually need help. If we can do it all on our own, then we don't really need to be good leaders. Leadership is about working in groups, and effective collaboration is at the heart of a great team.

There may be no leadership skill more essential than communication. No matter how competent you are in other ways, if you cannot explain what you are doing and why you are doing it, you are likely to fail.

Understanding your own limits and the limits of key team members is a crucial leadership skill.

Competency is about knowing what you need to know and being able to do what you need to do in your work. Leaders need to have a good grasp of core operations.

Community skill helps leaders pay attention to, understand, and connect with key stakeholders both inside and outside the organization.

How do we evaluate progress in developing leadership skills?