Topic: Formal vs. Informal group

How would you reply to this? Be relate-able and pose a new point.

In a formal group, the relationship between the members is professional, they gather just to accomplish the task allotted to them. On the other hand, in an informal group, there is a personal relationship between members, they share their opinions, experiences, problems, information with each other. Managers also benefit from informal organizations by using themto understand the grievances of employees. Since employees freely interact with each other, they can unify and address their problems collectively.