Hi, Ben.  I agree, potential is a key factor.  It's what we DO with that potential that makes a difference.  I do think that people can transform that potential into greatness without a CEO title, though.  To your point, leadership can look different on different people.  In the end, that too, is a point I often try to make.  I think we can encourage leadership in everyone, and we don't all have to follow the exact same path to get there (nor does "there" have to be the same!)