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In my recent crawl, I was given a bunch of 200 errors for having titles too long, i rewrote the titles and changed the URLs to match (using wordpress). I was then informed by my boss that changing the URLs like I did (www.website.com/abc ->www.website.com/xyz) may have changed our page rank for those pages and if so i should revert them to the old urls. There are about 14 titles in total that I made these changes to. Would it be quicker to change the URL's to their old names, or better for me to use 301 redirects to point the old urls to the new ones? Will either renaming the urls of the new titled blogs with their old titles or using 301 redirects have better SEO results? Does wordpress automatically make these redirects for me? When I click a link of the old urls I kept saved in a document it still goes to the page.