Successful machine learning projects require significant collaboration and diverse expertise, as the process involves translating business problems into data science challenges and ensuring data quality and infrastructure are up to par. An ML team typically consists of various specialized roles such as data analysts, data engineers, data scientists, research scientists, ML engineers, and developers, each contributing to different aspects of a project. In large companies, these roles are clearly defined, whereas in smaller startups, fewer people may cover multiple responsibilities, sometimes leading to the formation of "Full Stack Data Scientists." Effective collaboration within ML teams is facilitated by tools for project management, code version control, and model tracking, which help maintain clear communication and transparency among team members. The choice of roles and collaborative tools can vary depending on the company's size and type, influencing the efficiency and quality of ML project outcomes.