What is the BEST indication that Alex has improved as a team member?

The best indication that Alex has improved as a team member is that he is more dependable. Dependability is a fundamental characteristic of effective team dynamics, as it suggests that others can rely on him to contribute consistently and fulfill his responsibilities. When a team member is dependable, it enhances trust and cohesion within the group, as other members feel confident that he will complete his tasks on time and support the collective objectives.

While engaging more in group discussions, assuming leadership roles, and participating voluntarily are all positive signs of involvement and initiative, they do not necessarily indicate a fundamental improvement in the core attributes of team membership that dependability embodies. Dependability affects team performance at a foundational level, as it ensures that the team can function smoothly and effectively toward its goals.