In the revision stage, you might need to reorganize your draft. Maybe you originally planned to organize the paragraphs chronologically, but as you work on revising, you realize you are overlapping ideas too much. You can then go back and re-plan. You might even make a new outline to guide your new organization. Instead of time order, you might revise to order of importance. This means changing topic sentences, moving around main points and examples, and most likely, getting rid of some things and adding others. It also might mean writing a new introduction or conclusion to fit the new ideas and new order.