What I like about this paper is that it is a clear and fairly detailed description of how learner input can be incorporated into an instructional design process. And I think that the author makes the case that the methodology can be used to create a pretty good course. What it leaves me wondering, though, is what happens when the current set of learners moves on and a new cohort moves in. Do you redesign the course from scratch? Probably not (to judge by the description of the process as a "one-time cost"). But then, is the course "learner centered" from the perspective of this new cohort?