With a 7.9", 10.2", 10.5", 11", and 12.9" iPad lineup!? Respectfully, I doubt it. Steve fixed Apple's bloated lineup when he came back to Apple in the '90s to make it is what it is today. While much of Steve undoubtably lives on in the company, Apple was not prepared to loose such an influenctial individual prematurely.
It was obvious early on with all the absent days and months, the secretiveness around his health-issues, that he wasn't going to be around forever.
He himself knew better than anyone else that he was literally living on borrowed time, bought by sequencing the DNA of his cancer and variating the medical cocktail each time it mutated - until that no longer worked.
His death was a surprise and a shock to all of us - but Apple was prepared, at least from a technical point of view.
Steve was the right man at the right time, doing mostly right things.
But I still believe Tim Cook is the right man for
this time, too.
Apple is an economy of its own, it would be ranked somewhere in the 40s-ranks here:
https://en.wikipedia.org/wiki/List_of_countries_by_GDP_(nominal)
Nation states almost treat it as a peer (as they do other companies like MSFT, GOOG and AMAZN)!
I think Apple only started to have a significant lobbying-budget after Tim took over (and even he was reluctant).
Sometimes, it looks like the only line of communication between China and the US that always stays open is through Tim. Steve would never have been able to maintain the patience for that (that may have been a side-effect of living on borrowed time and knowing it - you probably lose patience for time-wasters at that point).
It takes different personalities to found a company, to make it grow, to bring it through crisis and to grow it to truly global scale (and keep it there). Steve as able to adapt himself so that he could lead Apple to through some of those phases - but I really struggle to see that he would have had the patience to adapt himself one more time for the current situation.