LEADERSHIP AND MANAGEMENT , need orginal and response from Dubrin Leadership perspective. I'm taking an exam so I need a response asap, I have two...

LEADERSHIP AND MANAGEMENT , need orginal and response from Dubrin Leadership perspective. I'm taking an exam so I need a response asap, I have two hours taking exam now. Please help 

What would be the potential disadvantages (at least two) of selecting a team leader who is highly charismatic and visionary? Clearly label your two disadvantages.

What are the significant differences among the transformational leadership theory model, the normative decision model, and the charismatic leadership model? And under what conditions/situations might each of the three leadership models (transformational – charismatic - normative decision) be effective? Explain your answer in sufficient detail to demonstrate your understanding.

Describe the differences between the universal and the contingency leadership theories. Explain your answer in sufficient detail to demonstrate your understanding. Be specific using the materials introduced by DuBrin and not a generalized or philosophical statement. Hint: both the trait and behavioral leadership theories were attempts to find the “one best leadership style in all situations”; thus they are called universal leader theories.