This new workflow encourages single-tasking. When one of Devesh’s employees decides to work on a given project, the only information or discussion they see on its board relates to the project. This allows them to remain focused on one thing until they’re ready to move on. When using a general-purpose inbox, by contrast, they were constantly switching back and forth between many different projects, sometimes even within the same message—a cognitive state that’s both unproductive and misery-inducing.

