I have a client who wants me to create new WordPress site. Their old site is all HTML and the code is way outdated. They do have some pages that rank pretty high for their keywords. I don't want to ruin their good rankings. My question is, if I create a new site with Wordpress should I leave those high ranking pages up or delete them? I could never have the exact URL string as the HTML page. Would Google or the other SE's nick you for having duplicate content, one WordPress page and on HTML page? Any thoughts on this would be helpful.
Thanks,
