Categories agile english sketchnote Joseph Perline’s 3 Questions Post author By Martien van Steenbergen Post date 6 June 2012 Joseph Perline’s 3 Questions: #When do you want to know you have a problem? #What are you prepared to throw away? #What does that mean? By Martien van Steenbergen Martien is a Master Agile & Lean Trainer & Coach. View Archive → ← Certified Scrum Master training for Informaat with Joseph Perline → Joseph Perline’s 3 Rules