I remember in the early stages of his reign as CEO, Tim the logistics & procurement guru to Steve would come on stage and try to be a bit humourous ...maybe to sustain the charismatic aura Jobs created. It seemed OK for a while but after time it all dried up. Two different talents driving a fantastic company. People's opinions will always be split between the shareholder profit yield champion and the maverick innovator who will throw in the kitchen sink for success.
Perhaps the middle ground is what we need.
What we need is that whoever is CEO recognizes his own skills, and relies on people that are masters at whichever skills he doesn't have. Steve Jobs needed a logistics and procurement genious, so he had Tim Cook. If Jobs was running logistics and procurement, it is unlikely that Tim would ever have had the chance to become CEO, because the company would be bankrupt by then.
So, the question is whether there is a product guy that Tim can lean on. That product guy doesn't have to become CEO, but if he doesn't exist in the first place, that discussion is moot. So: Exactly which product guy is it, that people want to replace Tim with? Until a new genious steps up, it will have to be more than one person.