Next came . The existing Gantt chart was a lie. Mira introduced the concept of the critical path using a new feature in the 6th Edition: the emphasis on agile iterative scheduling. She didn't force pure waterfall. Instead, she used the guide’s newly harmonized approach—creating a hybrid model where the tunnel boring was predictive, but the software integration for the signaling system was agile, with two-week sprints and a refined backlog.
Enter Mira Vance, a newly hired Project Management Officer. Mira was a pragmatist with a worn, coffee-stained copy of A Guide to the Project Management Body of Knowledge (PMBOK® Guide) – Sixth Edition living on her desk. She didn't see it as a bible of rigid rules, but as a map of a chaotic continent.
Her first act was to open the PDF. She scrolled past the familiar "Figure 1-1: Project Management Process Groups" and landed on a section the GTA executives loved to ignore: .
