This is true. When I was more junior I arrogantly believed that project managers and marketing people and business development and customer liaisons and all those various other support staff were overhead—baggage that only cost the company money and slowed down development. I believed that software would just leap from my fingertips onto store shelves, without help from any of this administration. Only after trying one of these roles did I realize how much would grind to a halt without this overhead. I know the view sounds self-serving but these folks really are the grease that moves projects along and the duct tape that holds everything together as they move.