I got into agile development during the late 90s when I read Kent Beck’s book about extreme programming (XP). It was mostly the technical aspects of XP that attracted me; I liked test driven development and continuous integration and I understood the benefit of continuously reviewing the code by doing pair programming. It took some time for me to turn my attention to what I mainly focus on today, and what I see is a cornerstone of agile, teamwork. Product development is in most cases a complex endeavor where you need a high level of collaboration and teamwork to reach required outcome. To succeed you have to make sure the participants build on each others strength and knowledge, and where they see differences as something valuable and important. But it is not certain that all working groups ends up as a true team. As a team coach you need to pay attention to building the team at the beginning. This post will describe a few tools that I have used in order to form teams.