Remove TBA request after deleting Instructor from class
The senario- An Instructor places a TBA request, you add the instructor to the class, the instructor comfirms, then requests a turnback and you delete the instructor from the class. The system then returns the instructor to the useable instructor list, however it automatically lists them as a TBA request again.
The short of it, you cannot keep track unless you remember that the instructor had turned back and is not available any longer.
Solution- Remove the TBA request from the instructors name after assigning and deleting the instructor. If the instructor then wishes to be available for the class again, they would have to submit another TBA request for the class.

This has been completed. TBAs are now deleted if the user is manualy removed from the assignment. Thank you for the idea.