Authority is the key of SEO, not backlinks. High authority website is easier ranking in Google than low authority website. Low authority website with thousands of backlinks will be punished by Google within 90 days.
A lot of SEO beginners are making the disasters when doing SEO. They are not focus on the quality of the website, but waste too much money to buy the backlinks. They are using the software created 1000 backlinks in just few days. The keywords ranking always drop after Google panda update.
There is no way to rescue the website if Google penalized it.
How to Improve the Website Authority
Submit Google Business Location
Add Google Author Verification
Google Webmaster Tools Submission
Get real users sharing in the Google plus
This video course will show you how to do these steps. PDF document attached.