Pros and Cons of Outlook Groups

A new year has started. One of the department chairs has decided to add outlook groups - four of them - in order to keep herself organized.

I am having a real problem with this.

I can't delete emails in these groups (excuse me, conversations). I cannot even see the groups at home if I have looked at all of the postings. And I cannot sort the postings into folders that make more sense to me.

I will find another way to organize myself but I wonder if anyone sees an upside to groups?