Rather than replacing a draft, the revision coexists with it, offering expansions, alternatives, and offspring that enrich the original work.
Generative Revision
Put what you've written aside. Later, read it pretending you've never read it before.
Rest
Your exploratory writing is probably messy and unshaped; once you have something on the page, think about what form or structure best suits the content.
Don't start with "what" you are trying to say, or how a piece will end. Instead, freewrite or write rough drafts to discover what you want to write through the writing itself.
Observe, read, take notes, jot down bits of image and language, general ideas.
Gather Materials
Exploratory Drafting
Shape Materials
The Writing Cycle
