Here you aren't choosing to leave though. The company is paying you less and offering stock options, and then firing you solely so they can take those back as a deliberate policy.

With Sun and Oracle, at least the case could be made that the VP's would have been redundant during the reorganization process. But it's different from saying "Hey, give up the stock options or you are fired."

I think it's that point where you have arguable contract claims.