A team leader or team lead is someone (or in certain cases there may be multiple team leaders) who provides guidance, instruction, direction and leadership to a group of other individuals (the team) for the purpose of achieving a key result or group of aligned results. The team lead reports to a project manager (overseeing several teams). The team leader monitors the quantitative and qualitative result that is to be achieved. The leader works with the team membership.
More at: Team leader