There are many ways to determine which efforts are producing results and which ones aren't. For example, you can study your website's analytics through your web host or by using Google Analytics. Most social media sites provide analytics as well, or you can use tools such as Hootsuite to get social media analytics. Your email service should also provide you with information on the open rates and engagement rates for your emails.
QUOTE: “The quality of the MC is one of the most important criteria in Page Quality rating, and informs the E-A-T of the page. For all types of webpages, creating high quality MC takes a significant amount of at least one of the following: time, effort, expertise, and talent/skill. For news articles and information pages, high quality MC must be factually accurate for the topic and must be supported by expert consensus where such consensus exists.” Google Search Quality Evaluator Guidelines, 2019
In Chapter 2, we learned about SERP features. That background is going to help us understand how searchers want to consume information for a particular keyword. The format in which Google chooses to display search results depends on intent, and every query has a unique one. Google describes these intents in their Quality Rater Guidelines as either “know” (find information), “do” (accomplish a goal), “website” (find a specific website), or “visit-in-person” (visit a local business).
While the obvious purpose of internet marketing is to sell goods, services or advertising over the internet, it's not the only purpose a business using internet marketing may have; a company may be marketing online to communicate a message about itself (building its brand) or to conduct research. Online marketing can be a very effective way to identify a target market or discover a marketing segment's wants and needs. (Learn more about conducting market research).
Ask for a technical and search audit for your site to learn what they think needs to be done, why, and what the expected outcome should be. You'll probably have to pay for this. You will probably have to give them read-only access to your site on Search Console. (At this stage, don't grant them write access.) Your prospective SEO should be able to give you realistic estimates of improvement, and an estimate of the work involved. If they guarantee you that their changes will give you first place in search results, find someone else.