This has probably been discussed before but given today's SEO environment where the content on one page can affect the rankings of another do you think it might be a good time to take a different approach to content creation? My thought is that perhaps a domain with an index page and 4 content URLs(articles) could be the basis of a start of a site and each time a new article is posted it replaces the previous content on an existing URL. If you post once a week then any given article would exist on the site for a month, maximum. You could adjust how many URLs are on the site based on how often you update but the goal would be to have content only exist for a month before being rewritten.
Why? Because a month is long enough to know if a page is generating any interest(from search or otherwise). If it's not generating 500 views from search daily, for example, it would be rewritten with a new title and content when its turn comes. If, however, it does meet a minimum for traffic it would be archived and a new URL created for the rotation.
Pros: Any backlinks to a page would remain even if the page changed over time. Any non-performers would be purged efficiently. The site would only grow if content was worthy thus maintaining a high average value.
Cons: The occasional link or bookmark would no longer point to the same content for which it received that backlink or bookmark.
What other issues or benefits do you think such a "perform of get rewritten" minimal URL approach would have?