For our client: We were lucky enough to remove most from the prior agency outreach, we also went directly to many webmasters in which we wanted to remove links. We did not use the Disavow tool as it was not around when we completed this link cleanup, but we all know it has been said that if you are going to use the Disavow Tool to use it with caution.
There is absolutely no reason why your on-page optimization should not be perfect. It can mean the different between your website showing up on page three of the search results and your website being the top listing. We encounter so many local businesses that simply ignore their on-page optimization (or the prior SEO company didn’t optimize correctly).
At our agency, we work with sites of varying sizes, from very large to quite small, and recently, we have noticed a trend at the enterprise level. These sites aren’t relying as much on Google for traffic any more. Not only are they not relying on Google traffic, but also, the sites are getting less than 10 percent (or slightly more) of their organic traffic from the search giant.