Ugg, as a Chief Marketing Officer, a Chief Strategy Officer, and a Sr. Instructor at General Assembly on Marketing, and the Marketing function - you would want to deal with the biggest value added activities of marketing first, and get your hierarchies in order. Start with understanding the marketing function as have a role in Product (what you build and sell), Place (where you sell it), Price (how much you sell it for), and Promotion (how you promote, market, advertise your product). PR is a subset of promotion, similar to MARCOMMS (marketing communications). Both have to deal with communications, in the case of PR, communications/outreach with the public at large and Marcomms, the communication that is specific with customers). Under the promotion dimension of marketing is also traditional and digital marketing. Try hard to think beyond "the organization of marketing" and consider in what areas Marketing needs to be Responsible, Authorized to Act, Consulted, and Informed. (This is called RACI). For example: will Marketing be included in New Product / New Market Opportunity analysis, strategy formation, and planning? (Yes, they should, even if the Strategy function is put in charge). You could also use a "next best practice" approach which has marketing, sales, and distribution unified under a Chief Revenue Officer. Marketing Operations - the new application of technology to Marketing Tactic management - might also be part of your thinking. Ofcourse, corporate culture, company size, industry, product/service type matters in the engineering of a marketing function, so hard for me to say more. Happy to chat, if you really want to get into the details, the hierarchy, the three or four models to choose from, etc. Good luck!