There are many SEO experts in the industry, and they may have different profiles or work according to different principles. They can do all the work themselves, and they may take care of each site individually. They believe that each website requires a different level of work to achieve a successful SERP. Read more now on Superstar SEO Blog
You will also find large SEO service providers. These firms hire several SEO professionals of medium level to manage a large number of SEO campaigns. It is therefore reasonable to assume that these firms don't have the time necessary to manage all of their SEO campaigns individually.
The simple format, or templates that work for all websites to be ranked is what they follow. They do this practically every day. So, their sharpness is also reduced. It is therefore conceivable that they are inclined to become SEO factories.
Check out the SEO companies listed above before you decide on a service provider. Check out their performance and their ratings. You should also ask them about their recommendations. Ask as many questions about your chances of success. Ask them to speak to you in simple terms.