Publishing's future role?

Glendower: I can call the spirits from the vasty deep.
Hotspur: Why, so can I, or so can any man;
But will they come, when you do call for them?”
― William Shakespeare, King Henry IV Part 1: Third Series

Clay Shirky flat out states that professional "publishing" is going away:

Publishing is not evolving. Publishing is going away. Because the word “publishing” means a cadre of professionals who are taking on the incredible difficulty and complexity and expense of making something public. That’s not a job anymore. That’s a button. There’s a button that says “publish,” and when you press it, it’s done. Clay Shirkey (via Assorted Stuff and Dangerously Irrelevant)

I find this statement somewhat ironic, not to mention short sighted, given that Amazon shows Shirky having four professionally-published books for sale. Indeed, anyone can "publish" by simply placing work on the Internet and making it publicly available. But, to paraphrase Hotspur above, "Why, so can I, or so can any man; But will they read it, when you do publish?"

I've always felt that as a writer, I work for publishers rather than them working for me. But I sense these roles may be reversing. I depend on my publisherers for market analysis, for editing, for design, for printing or e-book creation, for marketing, for distribution and for sales - all things they are good at and for which they take 85% of the revenue from my sales. I could learn to do all these tasks to a degree, but do I want to take the time not just to learn, but to DO them, and do them well? Few authors want to be a one-person publishing house.

But with the rise of Lulu, iBook Author, and other avenues that make self-publishing easier than the traditional vanity presses, it may be the case that authors can contract with publishers rather than publishers contract with authors. Vanity presses like Beaver's Pond already work like this for print books. And I am sure plenty of entrepreneurs are starting to provide online publishing expertise. 

Professional publishing will be around for a very long time.