Some of their worst years were under Krzanich, who had an engineering background… I think it is hard to guess who’ll be a good CEO for a tech company. Someone like Lisa Su with a background in engineering but also lots of R&D seems like the best pick. The CEO doesn’t need to do the i-dotting, t-crossing engineering stuff anyway, having a good idea conceptual of what is upcoming and possible is more important.
Seems like what you need is a triumvirate... an idea guy (The Jobs), a tech guy (The Wozniak), and a 3rd person who's main job is to keep the first two from killing each other, and ideally a sense for operations and PR.