This document tells a story of David vs. Goliath where an Israeli open source company, Cloudify, overcomes a large network vendor to help an Israeli operator launch a new cloud/edge network services platform. Cloudify had to address concerns around being free vs. open source, questions of maturity compared to the incumbent, and preferences for turnkey vs. do-it-yourself solutions. Ultimately, Cloudify developed a new model for network function virtualization that helped the operator launch its new service at lower cost and faster time to market, making Cloudify the victor in this industry battle.