A person who leads a team; synonymous with チームリーダー. Used in business, sports, and project contexts.
See also: チームリーダー
He was appointed team leader of the project.
As team leader, you have the role of bringing together the members' opinions.
Compound of チーム (team) and 長 (leader, head). The suffix 長 is commonly attached to group nouns to indicate the person in charge.