Which fallacy is present in the reasoning that all members of a team will succeed based on the individual accomplishments of some members?

The reasoning that all members of a team will succeed based on the individual accomplishments of some members is an instance of the composition fallacy. This fallacy occurs when one assumes that what is true for a part is necessarily true for the whole. In this context, just because a few individuals have been successful does not guarantee that all members of the team will achieve similar success. The reasoning overlooks the individual circumstances, skills, and contributions of each team member, leading to an erroneous conclusion about the entire group's performance based solely on a few successes. This logical misstep highlights the importance of recognizing that group dynamics and individual performance can differ significantly within a team.