This week we are on our annual holiday. We are toiling away editing audio and doing voice exercises to bring you new and exciting content and will be back next week!  In the SPaMCAST 777 we re-release SPaMCAST 486 - Daniel S Vacanti, Actionable Agile Metrics. The idea of flow metrics has fundamentally changed my perspective on how to use metrics. I have to thank Mr. Vacanti for starting me on the path. Enjoy the interview. The original inroducion - SPaMCAST 486 features our interview with Daniel S. Vacanti.  Mr. Vacanti is the author of .  We discussed the concepts in the book, answered a question from Steven Adams, and talked about his new book.  It was great to talk about a book with the author after the re-read.