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An extrovert, Ballmer has orchestrated the marketing side, and is well known for his loud and forceful presentations. In many ways Ballmer has been the yin to Gates' yang. Indeed Gates once described Ballmer as his opposite in a Computer Reseller News article. Unsurprisingly Gates and Ballmer have clashed many times as Microsoft has grown over the years, but they learnt to find a way of working together that first and foremost benefited the company that they were both passionate about.