We'll see how we answer this. I hope this answers your question.
When we license material in the library, which is what she's referring to, we pay a licence fee to the publisher, who again, we assume, divvies it out appropriately. That is how we license material. Once it's licensed, we have the right to use it, and individuals use it. If we license five simultaneous users, five people can use it at the same time. If we license one, they take their turns.
The fee for use is already paid in that fee. When we were paying Access Copyright, of course you pay by head count, so in essence we've already paid the fee for most of that licensed material and, as you can see, the both our dollar value and the kinds of licences have expanded greatly, so the duplication would only be worse.