This is meant to filter based on assigned researchers, and not submitted by fundraisers. The idea is that larger organizations may have teams of researchers and want to be able to look at the "teams requests". For example, ABC University has a Central Research Department for the University, and then some of the schools have their own research teams (like the Business and Law schools). As the manager, or as a team member, it may be important to see all of the requests open for the "Law School Team", and not the entire university.

Also, the Show for filter lets you filter prospect research requests by the assigned researcher. Research requests that don't have an assigned researcher will be excluded when using a Show for filter.