Ericsson duly succumbed to the seven-year itch over the summer break and ousted its CE, Hans Vestberg, who took the reins back in 2009. The move had been widely expected after a run of poor results. Vestberg had not made many major mistakes, but can be blamed for the sins of omission, clinging to a safe strategy at a time when the world was changing for his company. When he was promoted to take over from Carl-Henric Svanberg seven years ago, Vestberg was a safe pair of hands, clearly charged with maintaining the steady course set by his predecessor. Svanberg had taken over as CEO in 2003, inheriting an Ericsson in far worse straits than it is now. He engaged…