I am having trouble comming up with a GOS for leadership. This is the part i usually have trouble with, any tips on how to make an intriguing one will really help.
If you are using To Kill A Mockingbird as your source of examples of leadership, you are probably going to be focussing on the actions and words of Atticus Finch. His leadership style involved both, even though he probably would have denied being a leader if anyone had called him one to his face. To Atticus, his actions were simply the right way for one human being to treat another and an attempt to protect others who also were trying to do the right thing.
Perhaps you could use your opening statement to make a case for the idea that leaders often "act" rather than "direct." Find a short passage that powerfully describes Atticus setting an example for Scout, Jem, and the whole town of Maycomb through his actions.
You might want to start with a statement recognizing the strength of leaders who act based on personal beliefs and morals, in spite of the opposition or misunderstanding they know will come from those surrounding them. Again, use quotes from the text to contrast Atticus's principles and actions with the condemnation of the townspeople.
Use your opening statement to express the approach to the topic of leadership you want to take. Use the text to support that approach. It's a powerful topic - good luck!
Mr. Raymond Dolphus is also an example of leadership. He openly lives and socializes among the blacks of Maycomb. This sets an example of leadership in that he accepts them without discrimination. Calpurnia is also another type of leadership--she recognizes that different situations call for different actions. That's why in the house with Atticus and the children, she speaks clear and prescriptive English. However, while in church and among her family and friends she uses a more negro dialect.
Leadership comes from unexpected places in this novel. Moral leadership comes from a child at one point, as Scout disperses a lynch mob. Discussing leadership in this regard might be a nice way to introduce the subject in an essay on the text. The idea of leadership coming from surprising places relates to a theme in the text regarding looking past the surface and past first impressions.