What term describes a team that includes individuals from various departments to implement improvements?

The term that best describes a team composed of individuals from various departments to implement improvements is termed a "Task Force." This group is typically formed for a specific purpose or to tackle a particular issue that requires expertise or insight from multiple areas within an organization. Task forces are often temporary and objective-driven, optimizing collaboration and resources to drive improvement initiatives efficiently.

While the other options may have some relevance in different contexts, they do not quite capture the essence of a multi-departmental initiative aimed specifically at making improvements. An Improvement Team usually focuses on continuous improvement within a specific area or process, a Quality Team generally focuses on maintaining quality standards, and a Project Team is typically aligned with specific projects rather than cross-departmental improvements. Thus, Task Force stands out as the most appropriate term for a diverse team working towards implementation of improvements across various functions in an organization.