Meet Paulo Caroli , the Lean MVP and retrospective guy that's taken a unique approach to people and interactions over process and tools (first sentence from the Agile Manifesto). He thinks product creation and evolution should be based on real learnings (goodbye long projects planned on hypothetical requirements). It should be based on the minimum viable products (the fastest enabler for validated learning based on real usage). 

Principal consultant at Thoughtworks Brazil and co-founder of AgileBrazil,  Paulo Caroli has over twenty years of experience in software development, passing in various corporations in Brazil, India, USA and Latin America. In 2000, he met the Extreme Programming and since then has focused its expertise in processes and practices of Agile & Lean. He joined Thoughtworks in 2006 and held the positions of Agile Coach, Trainer and Project Manager. He received a Bachelor of Computer Science and MS in Software Engineering, both from PUC -Rio. Author of “To the point; a recipe for creating lean products”and “Fun Retrospectives; activities and ideas for making agile retrospectives more engaging”.  Read more at www.caroli.org