Kevin Rutherford is an independent agile and TDD coach based in the UK. He has worked in software development for more than twenty-five years, and since 1997 has been coaching organizations to become highly responsive service providers. He founded the UK’s AgileNorth group and is regularly involved on the agile conference circuit. His working practices focus on use of the Theory of Constraints and code quality, and he is the author of the Reek tool for Ruby. His blog is at silkandspinach.net.