I'm afraid it's not quite that simple.
> Additionally, you have a document library where users may "check out" documents with a set lifespan; "you have one week to make use of this document before it reverts back to an unusable state". From the company perspective, this digital rights management is implemented for security reasons; to control who can open company documents and in applicable cases, how long they can make use of them. Confidentiality is maintained by negating use of documents outside the network.
You're assuming there's no way to make copies once the originals have been unlocked for use. That's not a reasonable assumption. DRM is inherently flawed in a way that privacy technologies are not -- because both the key and the "protected" content must in some manner be available to the people one wishes to restrict most (the distributors). Otherwise, you simply wouldn't give them any access to the content in the first place.
