In this interview Leanpub cofounder Len Epp interviews Patrick Kua, a technical leader and agile coach for ThoughtWorks, and the author of two Leanpub books, The Retrospective Handbook and Talking with Tech Leads. Patrick is also a blogger and frequent conference speaker. We talk about how Patrick began his career, his thoughts about the importance of retrospectives, and the various challenges tech leads meet in the course of their work.