Realizing the target audience is very important to take your time and see what your business is about? And who are the targeted audience? For example, you have a business in cosmetics then the target will be the women audience as cosmetics is a thing which is mostly used by women. This is how you have to know your target and concentrate mainly on them. Because these leads will only make the purchase or will convert into the customers.
The way SAN operates is pretty similar to other high-ticket membership products like Digital Altitude (that one was shut down by the FTC for fraud), AWOL Academy, Mobe, etc. Overpriced and designed to make as much money as they can from their members. They keep pushing their members to upgrade their memberships and buy the next level/product. At the same time, they tell you that this is the way to earn money online. Making money online has nothing to do with buying levels. It has to do with working hard and offering solutions to your audience problems.
Work as a team from the same Mailjet account. Separate your activities using sub-accounts, invite an unlimited number of users, and control what they can do by defining their roles and advanced permissions. Each team member will be able to work independently, within a well-defined scope of abilities. Maximize your efficiency, maintain full control.