I would like be able to report on a tickets history, showing which groups it has been reassigned to along it's journey.  

The report would have to show tickets that have been created Last Week, and then all the times the ticket has been reassigned to another Support Group.  

I'm only interested in tickets that were assigned elsewhere  by a particular Support Group, so I can keep track of the tickets they are reassigning

Please let me know what additional information you require.