At UNOWHY, I worked to make design a shared practice beyond the design team. I invited product managers to observe user tests. I ran cross-functional ideation workshops with business, tech, and design together. I documented every design decision so the team could reference them instead of reopening debates. Small, repeated actions woven into the daily work. Over time, six departments became involved in the design process: tech, product, customer success, design, management, and end users. The most convincing argument was always the simplest: a thirty-minute user test that prevented three weeks of development in the wrong direction.