Black Wire and White Wire - a grey area?

 Chris Anderson says:

"...there are really two IT functions in any company these days, and each demands a different approach.

The first is the traditional one of core software functions, from HR to Accounting and file storage and backup. The second is cool web stuff, from blogs to wikis, social networking and, yes, even Second Life, despite my skepticism about its business utility."

Do we need two networks?

The Long Tail: The Black Wire and the White Wire