Does Intel have engineers on board who could innovate? I get the impression Intel has become such a topheavy marketing oriented company that all the engineers capable of designing a brand new ISA left a long time ago, and the competent engineers that are left just work on revving the x86.
To be fair, this is easy to say in hindsight; but it also does not account for companies that successfully embrace new technologies/paradigm shifts/etc, and for all the fads that incumbent companies rightfully dismissed.
Edit: I felt they'd found one organisational solution to this after the netburst bust, what with their R&D branch in Israel (?) working on an alternative (pentium m and what would become the 'Core' architecture) without too much disturbance and avoiding the pitfalls of working on competing products?