Slack faced significant challenges as it expanded from a simple messaging tool into a complex platform packed with features. By late 2019, the product had grown to include not just messaging and file sharing, but also posts, audio and video calls, threads, reactions, and more. This expansion led to a cluttered user experience, where features were layered on without a cohesive structure. Users struggled to navigate the increasingly busy interface, likening it to maneuvering through a chaotic city. During this period, Slack's product team ballooned. Initially, there was one core team, but as new departments emerged—focused on areas like platform, search, and enterprise—the oversight of the overall user experience diminished. Many features became orphaned, and the original design framework from 2013 was no longer adequate to manage the growing complexity. The article highlights the need for a dedicated Information Architecture team to create a cohesive framework that allows the product to evolve without losing usability. Stewart Butterfield, Slack's co-founder and CEO, had always been the guiding force behind product design. His hands-on approach shaped the product's evolution, but as the company grew, his direct involvement declined. This shift resulted in inconsistencies in product quality and coherence. The article underscores the importance of maintaining strong leadership and a clear vision in product development, especially as teams and features multiply.