Blue Coat has made changes to help take on a new strategy in the WAN optimization market. David Murphy’s appointment signals a step in a new direction for the company, analyst says. Murphy joins Blue Coat after having served as the senior vice president for HP’s LaserJet and Enterprise Solutions business unit. Murphy’s security push will be a successful differentiator for Blue Coat, analyst Tracy Corbo says. Blue Coat CEO: “We don’t want to go back and be a’me too” player in the data center-to-data center symmetric optimization game””]