This idea of a team in charge of itself is difficult for many people to accept. Traditional practices condition us to wait for someone to tell us what to do, and managers are accustomed to controlling everyone’s work and knowing everyone’s status. But agile teams can manage themselves—in fact, it's essential to agile.

You often hear managers referred to as leaders, but the two terms are not synonymous. Managers can be leaders, but not always, and there are people who don’t have formal management positions who are leaders. Understanding the difference can help people in both roles—and their team members—be more effective.

Arguments in software testing often revolve around language. We use phrases like test case, exploratory testing, and regression testing every day, but we can’t be sure that you and I mean the same thing when we do. Increased communication and detailed discussions can help avoid misunderstandings.