Off the top of my head, I remember Apple under Sculley/Amelio* as
- proliferation and fragmentation of Apple hardware
- licensing of the OS to other hardware makers
Under Cook,
- Apple processors
- improvements in manufacturing (materials, component integration, energy efficiency)
These seem to be much longer-term projects than what was happening under Sculley. What are you thinking of in particular in terms of "immediate short-term bottom line improvements" under Cook?
In terms of revenue, there have been increases in revenue from services (which includes iCloud and Apple Music)[0], increasing from 3.4 to 5.8 billion USD from 2013 Q1 to 2016 Q3. That's about 20% (eyeballing from "Apple Revenue by Category" chart) of iPhone revenue. I'm not sure how this necessarily ties in to the Sculley/Cook parallel though. At first blush, it doesn't look like services is increasing at the expense of other categories.
[0]: https://sixcolors.com/post/2016/10/apple-financial-results-l...
Yeah, we're going from Jobs to another CEO, so there are changes. I don't see a lot of other parallels, though.
* Edited: After reading linguae's comment, I realized I was misremembering Sculley for Amelio, lumping it all into a "post-Jobs" era.