Link: Hail to the Victors: DocuShare.
If the Business School expects to continue facilitating a group-work friendly environment, there needs to be one central, controlled data sharing repository, and something like DocuShare may be the solution.
You hit on what is clearly an issue. However, how would you support it? Personally, I would recommend entirely outsourcing the solution. Some of it may have to do with the group management process (which intertwines with technology).