No argument from me on Jim Keller's impact.Also lets be clear. Admittedly it required refinement, Jim Keller help them develop the Zen core which has been their saving grace. Without Zen, AMD would be in serious trouble.
However, it was much more than Jim.
The Zen team is well run.
Dr. Su has instilled a discipline of excellence and really dialed down the level of arrogance.
I have no doubt Intel can do the same but it's going to take some work.