The question is...
Did he jump, or was he pushed?
The guy doing the marketing at AMD has it tough because (don't take this the wrong way, Intel fans) but a few years ago the average AMD buyer was smarter (or at least better informed) than the average Intel buyer, in the sense you bought an Athlon versus a Pentium4 because you looked at benchmarks, pricing etc and concluded it was a better deal...
That all changed with the release of the Merom/Conroe/Woodscrest triplets, becauase now those same smart people are buying Intel chips because they are now a better product.
If you're the Intel marketing guy you can run more Blue Man group adds, offer more incentives to the channel, give a way more tee-Shirts, etc if your behind the technological 8 ball.. If you're the AMD guy... what do you do?
AMD's had a ton of screwups, but I think those were more technological, inventory management, and strategic decisions versus marketing woes.
I am sure he is a millionaire many times over, so I don't cry for him. he's doing ok