Limelight Networks has appointed Jeff Lunsford, former CEO of WebSideStory as its new CEO and Chairman of the board of directors. He replaced Bill Rinehart, who will stay on as co-founder of Limelight Networks, the Tempe, AZ-based company says. We had reported earlier this year that the company was looking for a new top guy. Rinehart has some history with SEC from his days at Critical Path, and that would be a problem if the company decided to go public. Limelight and Akamai are locked in a legal battle as well.