Jeff Kosciejew

agile systems thinking lean leadership host leadership deming listening workshop people interaction communicaiton language collaboration servant leadership acceptance criteria gherkin engagement management prdc deliver kanban agile & beyond agile & beyod 2019 declan whelan math with bad drawings profound knowledge variation in a system variation boris gloger ackoff systems introduction communication questioning coaching toronto complexity cynefin pareto scrum transformation prdc user stories invest ccc user story