What does it mean when an author uses a chronological and necessarily episodic structure to keep their main character at the center of all action.
Why would any author use any method to keep the main character at the center of all action? <~~central question
Other question: Are you clear on the meanings of the specific terms you named?
http://www.answers.com/chronological
http://www.answers.com/topic/episodic
Be sure to scroll down in both lined webpages and read MANY of the definitions -- especially the ones that relate to stories/literature.