This document discusses the increasing complexity of media planning and buying due to the proliferation of marketing technologies. It introduces the new role of a "Media Tech Planner" who would be responsible for evaluating potential technology solutions, integrating various components to create customized tech stacks for campaigns, and directing engineers. The document also notes that most "proprietary" tech solutions are actually white-labeled by other companies, and that a fluid approach is needed to adapt to constantly changing media landscapes and technologies.