What affect does a leadership style have on the ability of a team to become high-performance?

This DB has three parts.
There is a lot of discussion about whether a leader is born or made. Do you believe leadership is a natural ability that a person is born with? Or do you believe that leadership is a trait that can be taught? Provide an example.
Many people in a leadership role have a natural leadership style in which they handle situations, processes, procedures and people in a consistent manner. How do you believe you can assess your natural leadership style, even if you are not currently in a leadership position?
What affect does a leadership style have on the ability of a team to become high-performance?

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