In recent years, the design team led by Jony Ive has been making fewer visits to see early concepts at the Mac labs, and that change is said to have become even more pronounced after design leadership was rearranged last year, one of several sources told Bloomberg. That elevated to Ive to “chief design officer,” giving him a more hands-off role, while two other people —Richard Howarth and Alan Dye —stepped in to fill the gap.
Managers have meanwhile been floating multiple competing ideas at a time, forcing designers and engineers to split their attention in the hopes that one option will be shippable, Tuesday’s report said. As an example, the publication pointed to the 12-inch Retina MacBook, which had two core prototypes: the lighter Stealth Fighter, and the heavier, more conventional Stealth Bomber… More at Apple Insider.
To quote Bob who sent me the link above-
“This would explain some of what we are seeing. As well, if managers and engineers are being moved from Mac to iOS, it would take time to come up to speed, regardless of internal similarities.
I worked in the software industry and it would take an experienced developer at least 6 months to become reasonably familiar with the language we worked on.”