I understand that some SEO agencies and departments are not built for the big SEO campaigns. Strategic work takes time, and speeding (or scaling) through the development stage will likely do more harm than good. It's like cramming for a test — you're going to miss information that's necessary for a good grade. It would be my pleasure if this post inspired some change in your departments.
The leading search engines, such as Google, Bing and Yahoo!, use crawlers to find pages for their algorithmic search results. Pages that are linked from other search engine indexed pages do not need to be submitted because they are found automatically. The Yahoo! Directory and DMOZ, two major directories which closed in 2014 and 2017 respectively, both required manual submission and human editorial review. Google offers Google Search Console, for which an XML Sitemap feed can be created and submitted for free to ensure that all pages are found, especially pages that are not discoverable by automatically following links in addition to their URL submission console. Yahoo! formerly operated a paid submission service that guaranteed crawling for a cost per click; however, this practice was discontinued in 2009.