Clear goals give guidance to the team members, help to assess progress and see in advance possible delays. Shared goals help the members of a team better understand each other and build on top of each other's ideas. Team members working towards clear common goal are likely to improve their commitment.
Roles define who does what and make explicit the expectations team members have of one another. As long as uncertainty or disagreement exists with regard to these, taking responsibility will be an issue in the team. Without taking responsibility collaboration will suffer, and it will be difficult for the team to get things done.
Processes are about how the team works. Clear agreements on the processes set the stage for effective collaboration, create calm and a feeling of safety. A lack of well defined processes can lead to uncertainty and be cause for disputes and conflicts.
Relationships and interactions affect all the other aspects of teamwork. They help the team members develop consensus about its goals, find ways to clarify its roles, and define the processes critical to team success.