Prior to even forming a team, be sure that a team is required. Difficulties arise when organizations require individuals to work together when a team is actually not necessary, or conversely when individuals attempt to perform a task that is better suited to a team.
The forming stage is really about orientation, about “testing the waters” and getting to know one another. Team members need to know why they are a team, how they fit and that others will accept them. The team leader has a significant amount of responsibility for setting the guidelines and parameters the team will work under, orienting team members and eliminating fear or uncertainty.
Have you found team formation a challenge? What criteria have you used to determine whether to use a team vs. an individual?