As Steve Jobs would say, what you need is PASSION and GREAT PRODUCTS, focus in a few thing that you are great with and put your company the objective to be the very best with them. The Sony of today is a behemont where the left right doesn't know where the right left goes.
Putting the house in order, what Stringer has attempted, won't suffice. You may be more effective, but you go nowhere without AMAZING PRODUCTS because at the end, that's what you need. Sony needs a visionary and some craziness right now, they need a Kuratagi, a Morita, someone with that kind of magic to make something amazing.
It's really sad when one company like Apple or Sony gets in this state. It happened with Apple, it´s happening with Sony. Brilliant companies with amazing products becoming grey and sad.