We have a course that splits the students into groups to work on solving the same problem. Each group has a faculty advisor enrolled into their group as a member so that they can't see any of the other groups work. so far, so good, easily done and the students have started with group submissions. Now, there is a request to have three of these advisors have access to an additional group as well. I can't think of any way to accomplish this other than making them TA's, but there is a strict requirement that they not have access except to their groups.
I know you can do it if you use the student groups and allow them to choose their groups- unfortunately, we are too far down the road with submissions for that.
Manager, Academic Technology
Kenan-Flagler Business School
University of North Carolina at Chapel Hill