Context Switching Is Killing Your Team: What Multi-Project Data Reveals

Your senior developer is assigned to three projects. You assume they're giving each project a third of their time. Gerald Weinberg calculated the real math in Quality Software Management (1992): with three concurrent projects, each project gets about 20% of a developer's time — and the remaining 40% evaporates into context switching overhead. This isn't speculation. It's a well-documented cognitive phenomenon, confirmed by our platform data across B2B engineering teams and consistent with Gloria