Christensen, Clayton M. Competing against luck, 2016: title page (Taddy Hall) cover flap (principal with the Cambridge Group and a leader of Nielsen's Breakthrough Innovation Project)

Cambridge Group website, viewed Oct. 11, 2016: (Jobs Theory pioneer and leading practitioner; authority in the fields of Marketing, Innovation, Branding and Competitive Strategy; Bachelor of Arts degree from Yale Univesity; MBA from Harvard University) http://www.thecambridgegroup.com/about/leadership/taddy-hall/

Author's Linkedin page, viewed Oct. 11, 2016: (Innovation Adviser at The Cambridge Group, New York, New York)