That’s a good indication that the company is trying too hard to blow smoke up peoples asses with their “autopilot” effort. When people of this caliber throw in the towel after such as short time, it usually means reality can’t cash the checks the PR department is writing.
I've said it here before, and will again, Keller is THE man when it comes to chips. If you study his work history, and respective company achievements, nobody comes close. I'm sure others are involved and I mean not to take away from them, but if you want to lead the chip business, you hire Keller.
Secondary, this appears to be his MO from an outsiders perspective. Once he has finished what he started, he seems to bounce. Not sure if it's his style, or if a different company throws more piles of cash at him, but it's interesting to watch.
According to a quick search Keller is apparently moving to _Intel_.
Wow, I really hope that doesn't worsen the current imbalance of the x86 and GPU markets. Given that Keller seemed to be to Ryzen at AMD what Raja was to Vega/Polaris, it doesn't look good.