13. John Chambers
Don't look now, but John Chambers is doing it again: taking Cisco to new heights with what is his biggest and boldest bet yet: the Internet of Things. Chambers says Cisco, San Jose, Calif., is the "disrupter" going on the offensive to make sure customers and partners get huge benefits from the Internet of Things revolution. His ability to drive a partner-centric culture that helps partner continually cross one technology chasm after another may be his ultimate contribution.