This is story which ran a year ago, take a look
http://www.forbes.com/sites/realspin/2012/08/14/can-best-buy-get-its-groove-back-through-social-media-leadership/
http://www.forbes.com/sites/realspin/2012/08/14/can-best-buy-get-its-groove-back-through-social-media-leadership/