This is nothing new to educators, who have used group projects for years. Often student groups never really work. A few students are grouped together for a project, they divide the work, complete their individual tasks, compile the project, and then complain that half of the group didn't do any work. Oh sure, the assignment gets completed, but there was no synergy. Most groups rarely turn into effective teams because they lack the basic ingredients for success.
Effective teams are highly interdependent.
The goal is clearly defined by the team, and team members are willing to contribute their best to achieving the target. Supportive, honest and open communication creates an environment where team success can be evaluated without blaming an individual. Roles are defined. Risks are taken. Leadership is shared.