Check the link below for more details on Twitter’s leadership transition
Meanwhile, if you’re betting that Twitter ends up selling to a big guy–Google (GOOG) is really the only logical choice, though you could theoretically see Microsoft (MSFT) entering the fray–today’s move makes that option that much more likely.
Williams has already done the first hard part, by handing his company over to a professional manager. Handing the whole thing over to a new owner is a logical next step.
UPDATE: I ran that theory by Costolo and Williams. They disagree!
“I think it’s the opposite,” says Costolo, who argues that he’s taking over the company so that they can increase their chances of keeping it independent “for a long time.”