Together with the modern IT community, our Bank develops flexibility and adaptability of processes, creates self-sufficient product teams. It works well if a team is from 5 to 9 members. But what if we are talking about a large project, which requires significantly more resources? To work with ideas of different size and complexity, system analysts in teams and business analysts, who do not belong to a particular team, work together. We will tell how collaborative effort of business and system analysts maintains the integrity of a large project, manage requirements in a complex architectural landscape and business processes. Within the talk, we will share our experience in selecting work tools for manage requirements, if there are many teams and there is only one goal.