The purpose of a software team is to complete a mission. If you are a software team leader, your success is defined by the accomplishment of that mission; you must own the result 100%.

Teams exist to complete a mission. If you are a software team leader, you must ensure that the team's mission is well defined and clearly communicated. Without a clear mission, your team’s ability to make decisions is grossly impeded, as is your ability to set goals and measure progress.