When Mary Barra took over as the CEO of General Motors in 2014, she wanted to dismantle the company’s powerful bureaucracy. It stifled employees and disempowered managers: rather than communicating with employees and giving them guidance, the managers relied on the extensive system of rules to do the job for them. The ten-page dress code was the worst example. To shock the system and change the culture, Barra reduced ten pages to two words: dress appropriately.
