Prime Inc. has come up with a new product developmental project for which the project manager forms a team. The team includes Cam, Demarco, Tamara, and Aisha from accounting, marketing, manufacturing, and sales divisions respectively. On completion of the project, the team disperses and the four return to their original departments. However, each week, the four meet after work on Thursdays to play darts at a local pub. The four meeting after work to play darts is an example of a(n)