Security :: Ideas On Structuring Administration Section

I need some fresh input on how to structure a control panel that I'm building. Here's a little background:

The purpose of the system is to allow the submission of online forms. The forms are stored and processed in a database. Currently there are 3 departments that each have their own set of forms, and each department processes their forms a little differently. The staff should log in and process forms for their respective department (so each department only sees their submissions).

Almost all forms go through a workflow of sorts: 'new submission'-->'in progress'-->'completed', although this may vary.

Right now I've got it mapped out to have a page for each dept. that displays the new submissions, completed forms, etc. (new.aspx, inProgress.aspx, completed.aspx). Here's the question--should I have only one completed.aspx page and use it for all departments (hiding and showing forms based on the employee/department that is logged in), or should I set up three different control panels with three different completed.aspx pages--one for each department?