Do we really need HR? -Hot topic of the week!

Bernard Marr,Best-Selling Author and Enterprise Performance Expert has just written an article expressing that we no longer require HR departments: 

http://www.linkedin.com/today/post/article/20131118060732-64875646-why-we-no-longer-need-hr-departments?trk=tod-home-art-list-large_0

A follow-up article has been written in response to Marr's by Josh Bersin,Principal and Founder, Bersin by Deloitte who argues for the vitality of HR in business as we know it today.

http://www.linkedin.com/today/post/article/20131118164721-131079-why-we-do-need-hr-departments

I'm with Bersin. What's your opinion?