Recently appointed Apple CEO Tim Cook is making some, though not fundamental, changes in the approach to management over the late Steve Jobs, insiders disclosed Tuesday. While he's already known to more actively contact staff, the Wall Street Journal sources also understood that he was overseeing tasks common to CEOs but which Jobs had seldom involved himself with, such as corporate reporting and promotions. Cook is described as more "accessible" and, during Jobs' second tenure, was often an advisor on how to approach the co-founder on a given subject.