Eric Mastalir has witnessed the digital buying convergence of the public through both the lens of sports and general commerce. Mastalir, who formerly was the Chief Commercial Officer of the Seattle Seahawks and Sounders FC, also served as Vice President of Corporate Partnerships at the San Jose Sharks and Vice President of Strategic Alliances at the Sacramento Kings. Mastalir shares some of his thoughts on corporate sponsorship activation, as well as understanding both engagement from the public and the business development end of the relationship. Mastalir also talks about how Amazon's digital systems may help transform the process of sports sales. Twitter: @emastalir