I personally think that they should kill off their TV and Vaio* divisions. Drive up investment in mobile/tablets. Try a restart on PSVita (only has one more chance, though) (new model. cheaper, longer battery life, support SD cards). Get a PSNow box out there. Some kind of PSThree
I'm not so sure how their movie/music stuff is going. I guess industry standard, music on a long-term down and movies up.
*If people are buying for style, they buy Apple. If they're buying for getting shit done, they buy Lenovo. I guess they could go after gaming laptops? But that's a niche market, and Alienware already has it pretty locked down, so... In TV, Samsung are pretty much unstoppable at this point.