Fund managers believe that the positions of both Howard Stringer and Kaz Hirai are under jeopardy at Sony, following their botched handling of the PlayStation Network crisis.
Speaking in The Guardian, Beyond Asset Management fund manager Michael On stated: "The way Sony handled the whole thing goes to show that it lacks the ability to manage crises.
The current chief executive [Stringer] should step down after the hacker problems and the company's failure to push out products that are competitive."
Another fund manager, who remained anonymous, stated "The leadership of Sony is not in a good place right now. This could lead to Stringer stepping down and may sabotage Hirai's chances of succeeding as chief executive."