Hedge-fund instigator Daniel Loeb is calling for Sony to split its entertainment division from its electronics branch. Loeb’s hedge fund has acquired a 6.5 percent stake in Sony worth $1.1 billion. Notorious for disrupting companies in which he invests, Loeb thinks that by spinning off its entertainment arm, Sony could focus on electronics and increase profits. Time will tell if Loeb’s approach has any effect on the notoriously conservative Japanese corporate culture.