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.

Answer 1

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.