Macbeth as King

Macbeth as a king would be a selfish and greedy man. He would be a man of indecisive nature in that others need to tell him what to do. For example Lady Macbeth forces Macbeth to kill Duncan due to her manipulative ways, in this case questioning his courage. I think he won't be able to function on his own with his guilty and power hungry nature. Since he has to listen to others about his future he will act inrationally as seen through the killing of Banquo and of Duncan to start with.