"With group norms and roles established, group members focus on achieving common goals, often reaching an unexpectedly high level of success."
Leadership the Outward Bound Way: Becoming a Better Leader in the Workplace By Outward Bound USA, Rob Chatfield ISBN 9781594850332
By this time, they are motivated and knowledgeable.
The team members are now competent, autonomous and able to handle the decision-making process without supervision.
Dissent is expected and allowed as long as it is channeled through means acceptable to the team.
Supervisors of the team during this phase are almost always participating.
The team will make most of the necessary decisions.
Even the most high-performing teams will revert to earlier stages in certain circumstances.
Many long-standing teams go through these cycles many times as they react to changing circumstances.
For example, a change in leadership may cause the team to revert to storming as the new people challenge the existing norms and dynamics of the team.