Quality and relevance are different things, yet we often discuss them as if they were the same. but professional Digital Marketer have been optimizing for relevance all this time, and now being asked to optimize for quality to improve traffic.
Hi, you need to read this post for getting more idea about improving Sitewide Quality and Rankings : https://moz.com/blog/most-effective-way-to-improve-sitewide-quality-and-rankings