In my twenty-year career, I have been fortunate to play different roles on a large number of different teams. Starting as field officer at Doctors Without Borders through a development engineer and strategic project manager at a telecom company to an agile coach at software development company. The people I worked with were mostly great, dedicated, and hardworking but the results of our work varied considerably. Success was also determined by other factors such as the development processes, tools, knowledge access and culture of the company in which we worked.