Spencer, who is retiring after nearly 40 years at Microsoft, will be replaced by Asha Sharma an executive who previously oversaw some of the firm's AI initiatives. But the executive shake up has sparked online debate and speculation about Sharma's lack of gaming background, with some calling it the end of Xbox. It follows a challenging year that has seen major layoffs , poor sales and increasing development costs for the gaming giant. Xbox also revealed on Friday that Matt Booty who...