Teamwork is the collaborative effort of a group to achieve a common goal or to complete a task in an effective and efficient way.[1][2] Teamwork is seen within the framework of a team, which is a group of interdependent individuals who work together towards a common goal.[3][1]
The four[clarification needed] key characteristics of a team include a shared goal, interdependence, boundedness, stability, the ability to manage their own work and internal process, and operate in a bigger social system.[4]
Teams need to be able to leverage resources to be productive (i.e. playing fields or meeting spaces, scheduled times for planning, guidance from coaches or supervisors, support from the organization, etc.), and clearly defined roles within the team in order for everyone to have a clear purpose.[5] Teamwork is present in contexts including an industrial organization (formal work teams), athletics (sports teams), a school (classmates working on a project), and the healthcare system (operating room teams). In each of these settings, the level of teamwork and interdependence can vary from low (e.g. golf, track and field), to intermediate (e.g. baseball, football), to high (e.g. basketball, soccer), depending on the amount of communication, interaction, and collaboration present between team members.
Among the requirements for effective teamwork are an adequate team size. The context is important, and team sizes can vary depending upon the objective. A team must include at least two members, and most teams range in size from two to 100. Sports teams generally have fixed sizes based upon set rules, and work teams may change in size depending upon the phase and complexity of the objective.