You kind of answered your own question. Word documents aren't code. Take all these managers and get their concerns into code. That means dedicated engineers to

You kind of answered your own question. Word documents aren't code. Take all these managers and get their concerns into code. That means dedicated engineers to turn non-code into code, lower management that can negotiate with stakeholders to figure out what to prioritize, and upper management to get stakeholders to play ball with lower management. Standard enterprise project management, really.