Roadmaps for change are thus mere hypotheses, in both journey and destination. They represent the aspirations, desires, and hopes of their creators while putting forward a step-by-step action plan for how these objectives might be achieved. Herein lies the essence of the Roadmap Fallacy: a tool originally developed to represent existing realities doesn’t work well as a mental model for creating new realities.
Source: Innovating in Complexity (Part I): Why Most Roadmaps Lead Straight to the Graveyard
no straight lines 