I think that having people who are not passionate about their work is a recipe for disaster and there is no easy fix for it. the answer to that problem is very contextual, I don't think you'll find a generic magic trick to turn them around. why are they not passionate about it? what obstacles do they have in delivering high quality?
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Gojko Adzic
http://gojko.net @gojkoadzic +447765132680