Which of the following can negatively impact team effectiveness?

High turnover can significantly impact team effectiveness because it often leads to disruptions in workflow and continuity within the team. Frequent changes in team members can create instability, making it difficult for existing team members to build strong relationships and establish trust. Additionally, high turnover can lead to knowledge loss, as experienced employees leave with their valuable insights and skills, while new hires require time to onboard and become fully functional contributors.

In contrast, elements such as clear communication, defined roles, and strong leadership typically foster a healthier work environment and promote teamwork. Clear communication ensures that all members are on the same page, reducing misunderstandings. Defined roles help team members understand their responsibilities and how they contribute to the team's goals, leading to increased efficiency. Strong leadership provides guidance and support, inspiring team members to perform at their best and fostering a sense of cohesion.