Final answer:
A focus group is the best type of group for gathering information to identify cross-functional training needs because it encourages structured discussion among members from different departments, helping to uncover broad training requirements.
Step-by-step explanation:
The type of group that is best for gathering information to identify cross-functional training needs is a focus group. A focus group is predominantly used to gather feedback and insights through structured discussion, making it an ideal setting for identifying diverse training needs across different functions within an organization. This is because focus groups allow members from various departments to share their perspectives, thereby uncovering gaps in skills and knowledge that cross-functional training can address.
Other team types such as problem resolution teams, creative teams, and tactical teams have more specific purposes and may not be as effective in the broad identification of training needs. Problem resolution teams are more suited to addressing specific issues, creative teams are for generating new ideas, and tactical teams focus on executing a defined plan. Additionally, a task force, process improvement team, or project team could be too narrowly focused or too transient in nature for the overarching objective of identifying training requirements that span multiple functional areas.