Oct. 27 -- Kulbinder Garcha of Credit Suisse, Gary Vaynerchuk, chief executive officer at Vaynermedia, and Bloomberg's Anurag Rana discuss the challenges IBM faces in reinventing itself to compete with competitors entrenched in the latest developments in technology. They speak on "Bloomberg ‹GO›." Garcha, his family and firm, do not own shares of IBM, but his company has had an investment banking client relationship with IBM and makes a market in the company.