I found a plethora of sites that I need to dust off. These sites have a lot of old grandfathered links but they are no longer ranking. I am guessing due to the fact the content hasn't been updated and there haven't been new links in 5-7 years.
What is a good strategy to get old sites ranking again? Keep with the old design and just add new content and links... wipe it all and make new content... will the old content still rank if new pages are added?