Zachary Pirtle and Jared Moore Project Hindsight, TRACEs, and What Structured Case Studies Can Say about Innovation Where Does Innovation Come From? Digital Object Identifier 10.1109/MTS.2019.2930270 Date of publication: 30 August 2019 56 U.S. GOVERNMENT WORK NOT PROTECTED BY U.S. COPYRIGHT. IEEE TECHNOLOGY AND SOCIETY MAGAZINE ∕ SEPTEMBER 2019