I was the supervisor for the print center at an office supply store.
It was a department that no one had the cajones to touch or even learn anything about because the customers were just THAT bad. Management was afraid of it, and wouldn't force any other associates to learn anything.
So when I left, this actually was the change in profit; it's only been six months, but according to the only friend I still talk to at the store, the sales have adjusted.
It's not that I was just the most awesome salesman ever -- it's that they can't sell all the products and all the services there anymore because no one knows how to do it; where to order certain things from, how to charge for designing a flyer, etc.
The only thing that made me good at selling was that I knew that stuff... if a customer asked me how much it was to design a flyer, I'd sell them the $50 package for design and print.
Today if you ask, someone looks at a chart, flips around, looks back at them and says, "We don't do that... if you bring the file we can print them though!"
You would think they would bring someone in who would pick up the slack, train some new associates, and help get the store back into a respectable place, but it has not happened.
My department's sales my last full year had been just short of $300,000 -- this year, they're trending just shy of $200,000. Granted no one's feeding me official figures, it's just what I'm told.