I can tell you that in my area, there are two completely different Goodwill organizations (they do not overlap). One conducts mystery shops, the other does not. I have done mystery shops in the one which does. In both sets of stores, there is always someone present to accept donations and at least one other person available inside the retail store. Some locations have both donation and purchase area. Some have only one or the other, but someone is always there. Each of them has a centralized location which trains and employs people to do tasks such as bulk mailings and other things. Is that the type of Employment Specialist you would be looking for?
Shopping Southeast Pennsylvania, Delaware above the canal, and South Jersey since 2008