‘Agile’ risks to be a very (ab)used term in the ICT (and not) community during last years. Agile means – as in the Agile Manifesto – to be responsive, working in team and be ready to change. But what do we need for really being agile? The answer is simple: start to be (before) LEAN in order to be (after) AGILE. Too often these two terms risk to be meant as synonyms, but they are different and complementary to each other. The presentation will show a possible path to do that, adopting Lean techniques as suggested by Six Sigma for reducing wastes (the seven ‘muda’) and only then adopting Agile ones, also applied to Functional (and not) Sizing Methods, such as Function Points and SNAP. Note from the conference organizers: “Muda” is a Japanese word meaning “waste”. The Toyota Production System identified seven types of “muda”.