“Jobs was far more of a "tech guy" than either Sculley or Cook.”
Very true. “Renaissance Man” is a such cliche, but Steve Jobs really was. Having those tech skills and interests under his belt is what made him such a fabulous tech leader and tech salesman; and without that mix he’d have just been one more Swiss Tony bullshit artist in an ocean of the bums. (Like many here I’ve worked with that sort, and the old joke about the salesman, the developer, and the bear is frighteningly on the nose.)
But whereas someone like Woz loved and built tech for its own sake, and was perfectly happy doing that and nothing else all his life, Jobs always saw tech as just the means to his own ends: which wasn’t even inventing revolutionary new products so much as inventing revolutionary new markets to sell those products into. The idea that personal computers should be Consumer Devices that “Just Work”; that was absolutely Jobs.
And yeah, Job always used the very best tech talent he could find, because the man’s own standards started far above the level that most geeks declare “utterly impossible; can’t be done”, and he had ZERO tolerance for that. And of course, with the very best tools in hand, he wrangled that “impossible” right out of them; and the rest is history.
Woz made tech. Jobs made markets.
As for Sculley, he made a hash. And while Cook may be raking in cash right now, he’s really made a hash of it too: for he’s not made a single new new market† in a decade, while Apple’s rivals—Amazon and Google—are stealing the long-term lead that Jobs’s pre-Cook Apple had worked so hard to build up.
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(† And no, things like earpods and TV programming do no count, because they’re only addons, not standalone products, and so can only sell as well the iPhone sells. And the moment iPhone sales drop off a cliff, Cook’s whole undiversified house of cards collapses, and they might as well shut up shop and give the money back to the shareholders.)