Do you have to be in the management role to be the leader?" Describe.

If so, and suppose that leaders don't make good managers, does this mean that to have good leaders, you should accept bad managers?

If this is not so, is it likely to groom good managers from ranks of non-managers which show good leadership?

And at last, if supposition is that good managers are normally not good leaders. Is it likely to make managers good leaders. Or we can say can leadership be taught?