When there are no evidences and facts but the change is necessary even then transformational leadership is necessary. When alone facts cannot bring a change the transformational leaders inspire and win over the people to bring the changes. Transformational leadership can be used for something negative as well but bringing positive changes becomes easier with it.
References
Burns, James MacGregor. (1979). Leadership. Harper & Row
Bass, Bernard M. And Avolio, Bruce J. (2002). Developing potential across a full range of leadership: cases on transactional and transformational leadership. Applied Psychology Series.
Routledge Northouse, Peter G. (2009). Leadership: Theory and Practice . SAGE
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