Since the late 1970s the practice of software project management seems to have been quite constrained within the basic strictures of the waterfall model of development and project management. the literature abounds with suggestions of how to improve this way of thinking. rigor in planning, estimating and following the plan has remained the centre point of such suggestion. this has not proved to be succesful. this paper will draw together concepts and pratices of 'agile development' , lean product development', choordic systems' and ' the model of concurrent perception' to suggest a new paradigm of software development and project management.