Instead of using multiple content areas, you might want to consider using the Ditto snippet for the feature sections.
You could use a single Ditto call for both the main feature and the backlog. Use the tpl parameter for the backlog entries and the tplFirst parameter to style the main feature differently. To display the backlog as thumbnails, you would have to create a template variable using the image input type and image widget and apply that template variable to the article pages.
Or, you could use a Ditto call for the main feature and use the Reflect snippet to display the backlog. I’m sure there are other approaches to this, the best solution will depend on your exact requirements.
For your top five section, you could also use Ditto, using the documents parameter to specify the five documents you want to appear in the list.
Have a read of the Ditto documentation and if you need more help, post back.