Agile software development relies on teamwork. The idea: a team can create more complex software and it can create it quicker than a single person. However, different teams do not fulfill this promise equally well. Some teams stoically pull a cart with square wheels and do not even spot the fault. This article explores a wide range of aspects around team work with probably one key message: Collaboration creates the team and thus providing room for collaboration is an easy way to strengthen a team.