Call it a brown paper bag, convenience store hold-up style, if you want. When Jerry is adamant about staying just a few weeks ago, and suddenly he changes his mind, something convincing came his way. Convince = Incentive at his level.
For better or worse, Yahoo now doesn't have a leader. At least the market thinks that's a good thing and Yahoo shareholders got rewarded with a $1.3 billion bump. Today's featured commenter, mew, has a different idea about Jerry Yang leaving: