The way I would describe large companies is similar to that joke "Mandatory scheduled fun events" just with innovation. Most large organizations cannot innovate, instead they execute well. Look at all the major large organizations, they primarily distinguish themselves on execution, not innovation. A startup that's hobbled together by passionate soft drink makers (or whatever) aren't gonna come close to full business efficiency of Coke Inc. The manufacturing capacity, distribution channels, the logistics, the brand management and awareness, the brand integration and cross promotion, and other things that come from economy of scale. The rigid structure is not a place for innovation to grow.