Steve jobs was a great manager and knew how to get the most out of people, but he wasn't responsible for every Apple product that was ever created.
Ahh, but that's the thing. People like Ive (note: don't forget how many of the core of some of Apple's best products aren't there anymore!) are specialists in their discipline, but might not make the best decisions or do their best work without the right kind of leadership in place. I mean, have you ever seen the entries and winners of some of the industrial design industry competitions?
There are countless times where companies have had the best and brightest in their disciplines, or even entire teams of them, where the company failed to do much of anything. If memory serves, some of them were visited by Jobs, who was able to build off the ideas and actually execute a great product or feature from them.
Or, look at competitors like Microsoft. I've heard they have an incredible amount of talent, yet they've never been able to really execute and produce something spectacular.
I have little doubt that Cook is an exceptional supply chain manager. He probably knows his Business 101 quite well, etc. But, that's not the same (and might actually be a detriment... unless you can unlearn some of the Business 101 stuff!) to being a visionary leader.
The other problem is that Apple is just WAY bigger now. And, I've yet to see big not start to equal stupid, when it comes to businesses and organizations. That's not so much Cooks fault, as something that's incredibly hard to counter, no matter who was in charge. If Jobs were still here, I'm guessing he'd be having some of Apple's current difficulties as well. (i.e.: some of the product teams seemingly being unaware of what the other teams are doing.)
Or maybe.. maybe it's because those kinds of technologies only happen once every thirty years or so. You want a major new technology shift when we just experienced one this past decade.
No, I totally get that. The *major* innovations only come along so often. But, Apple has been failing not only to innovate, but even just make good incremental changes lately. And, where they could, they instead decide to gimp products for marketing over UX reasons. That has nothing to do with leaps of innovation, it's a fundamental change in Apple's core principals.
And, the quality control on the software side has gone in the dumper. That's aside from the really poor decision making when they went Flat™. It seems like they saw what M$ (unsuccessfully) did with Windows and chucked their whole hard-learned-UI principal book out the window.