BBCNEWS World Business Report November 30, 2021 05:40:00
A big shakeup at social media giant twitter — jack dorsey is stepping down as chief executive of the company. he will be replaced by the social media giant's current cto, parag agrawal. mr agrawal joined twitter in 2011, and has been the firm's head of technology since 2017. our north america technology correspondent james clayton has more from san francisco. in many ways, jack dorsey was the kind of archetypal stereotypical chief executive in silicon valley because he is a hugely wealthy and very, very rich man. he is a multibillionaire but you wouldn't necessarily know it from looking at h...