A team's success is typically measured by assessing the norms created by the team because these norms reflect the collaborative behaviors, communication patterns, and overall group dynamics that contribute to achieving collective goals. Team norms establish expectations for how members interact, support one another, and work together towards a common objective. When a team has strong and positive norms, it can promote cohesion, enhance motivation, and lead to better decision-making and problem-solving, ultimately driving the team's success.
Focusing solely on individual performance scores does not consider how well the team collaborates or functions as a unit. Evaluating based on the leader's perspective may introduce bias and might not encompass the team's collective experience. Additionally, comparing a team's performance with other teams can be misleading, as it often fails to acknowledge the unique contexts or challenges each team faces, obscuring the real achievements and dynamics that contribute to each team's success.