i don't know enough about it to know if it is significant or not but judging by how he was former president and CEO of ATI and now only a exec. vice president i would guess he has been preparing to leave for a while. If that were the case then it wouldn't be that big a deal.
Agreed, that's one way of looking at it. Although, I would be a little surprised if that has been the plan for a while since being the former CEO and President of ATI should have given him a pretty good bargaining position to secure something longer-term.
Here's a few quesitons/thoughts along these lines:
1) If things were going well, why would he want to leave?
2) If he had been planning to leave shortly after the acquisition, I would think AMD would want to know about it as soon as possible since ATI was "his area of expertise" and keeping him around would likely be in their best interest.
3) Wonder if the latest ATI/AMD video card release damaged his long-term relationship with AMD?
4) Since he's leaving, I wonder what kind of non-compete clauses are in place to keep him from taking his know-how to a competitor.
In any light, this is a pretty high profile move with relative significace IMO. It'll be interesting to see what comes of this in the next couple of days.