And none of them could really continue what Jobs had started. They didn't even have to innovate. And did Sculley come up with Newton? No, others inside Apple did. Yet he couldn't even sell that (and marketing was his thing!). It took the Palm Pilot to realize Apple's ambitions. Just as it took Steve Jobs to realize the ambitions of Xerox PARC.
Sculley, Spindler and Amelio all did, and all of them failed to various degrees, which illustrates just how facile that comment is.