Rick Hawes : Former Architect Fellow, Yahoo

You start thinking about engineering as a system. Instead of just programming a simple Makefile, you can turn it into something much bigger and look at the solution to solve systemic problems.

Lyn Campbell : Corporate VP, Global Operations at Proofpoint

You can look at someone's technical skills and know that they are brilliant technically and maybe they're even a good communicator. But when you start going up that vertical ladder for individual contributors and technology people, to be really good you have to be an influencer.