I agree that probably neither or those explanations is fully true, but I do believe that Jobs had the ability to harness conflicting personalities towards great

I agree that probably neither or those explanations is fully true, but I do believe that Jobs had the ability to harness conflicting personalities towards greater goals. I do disagree with your last point, though —— I've watched every keynote for the past 6-7 years and Forstall has rocked the iOS presentations. Perhaps I'm biased, but I very deeply associate him with the greatness of iOS, particularly Apple's ability to steadily pick off the "low-hanging fruit" features (e.g. 3rd party apps in 2.0, copy-and-paste, PC-free) with regularity and elegance.