Agile coach, Scrum master in Berlin. XSCALE Alliance steward and Business Agility Coach. (XBAC, CSP, CSPO, CSM, CLP.) Stefan also curates the weekly ”Food for Agile Thought” newsletter on best posts on agile and lean methodologies and product management—with 13,000-plus subscribers the largest of it kind. (See @AgeOfProduct.) Side project: Newsmate.io — the marketplace for newsletter content.