INA FASSBENDER/AFP via Getty Images This post originally appeared in the Business Insider Today newsletter. You can sign up for Business Insider's daily newsletter here. Microsoft is rethinking its gaming business, and one of its first steps is shedding staff. The tech giant laid off 4,800 employees on Monday, accounting for roughly 2.1% of its global workforce. The cuts, which BI's Ashley Stewart first reported last week, mostly impact Microsoft's sales and Xbox business. Xbox accounted for 1