Can staff members work on both training and testing?

The staff members can work on both training and testing for the following functions:

Registration
Payment
Back office
Scheduling
Appeals Registration & Scheduling (not hearings)
Refunds
Recertification verification
Credentials management

Staff members cannot work on all of the following.  They must work on either training or testing, but not both:

            Training                                               Testing                                         

Course Content                                   Item Review & Selection
Course Development                          Item Writing
Classroom Teaching                           Proctoring Exams
Writing Course Quizzes                     Evaluating Item Parameters
Creating Examples                             Writing Item Scenarios

The general rule is that people involved in training cannot be exposed to the specific content of the test.  This is to keep them from writing / designing / lecturing to the test, instead of to the general content to be mastered.