First read about Groupthink: https://www.mindtools.com/pages/article/newLDR_82.htm

As the article says:

• The challenge for any team or group leader is to create a working environment in which Groupthink is unlikely to happen. It is important also to understand the risks of Groupthink - if the stakes are high, you need to make a real effort to ensure that you're making good decisions.

This coming week your team needs to decide how you will approach the process of narrowing down a list of items to the ones that you will ultimately select as what you believe will be the life-saving objects to keep with you if you were to become the unfortunate victims of a plane crash. 

Avoiding group think is important here so that your team can benefit from the value of diversity of experiences; otherwise, a team might tend to simply go along to get along with one person's ideas just to make things easier or less stressful.

What is a leader's responsibility when working with teams in the workplace to ensure that Groupthink is kept to a minimum? How does diversity of a group increase or decrease the potential for Groupthink?