Ben Horowitz, The New 'CEO Whisperer,' Offers Advice On Tough Issues Like How To Fire Your Friends

In five short years, the venture capitalist firm Andreessen Horowitz has become an outrageously powerful investment firm, raising $2.7 billion and backing such names as Airbnb, Box, Fab, Facebook, Foursquare, Pinterest, Skype and Twitter, to name a few. While Marc Andreessen is the company's outspoken front man,  co-founder Ben Horowitz has quietly become the go-to guy for CEOs wrestling with really hard problems, reports Fortune's Miguel Helft in an in-depth profile on Horowitz. He's known as ...