When I ask entrepreneurs and small business owners, it is not unusual for not having any marketing plan. I once read that Sir Richard Branson never had any marketing plan when he started the 1st Virgin business many years ago. In fact in one study of entrepreneurship (I couldn't recall the name of the study) was that as much as 50% of entrepreneurs and business owners don't have a business plan and marketing plan when they first started the business.
I know that most new recruits are told to make that first list quickly and introduce everyone you know to the opportunity. This is the basic old school marketing plan for MLM and it is no longer practical. The problem is this sets the new recruits up to be rejected by people they actually care about, and continuous rejection usually results in the newbie quitting before they ever got very deep into the business.