A trio of the top 20 investors in Microsoft, anxious about the selection of the company's next CEO, have asked the board to push Bill Gates out of his chairman's spot, according to a report by Reuters. The likelihood of the board bending to the investors' wishes is slim -- very slim, said one analyst. "The chance that Gates is pushed out is about the same as Congress reopening the government today," said Jack Gold of J. Gold Associates, in an interview Wednesday.