In this paper, we focus on questions around who we are as teacher educators as well as our responsibilities in helping pre-service teachers compose forward-looking stories as they prepare to begin teaching. We draw on the results of two studies in this paper: one a semi-structured interview study with 55 second- and third-year teachers in two Canadian provinces and one narrative inquiry into the experiences of early career teacher leavers. These studies showed how early career teachers' stories to live by fuel their desires to become teachers. Teaching was a way to try to live out and sustain their stories to live by, that is, participants continued to live out their stories to live by shaped in early personal knowledge landscapes and embodied in their personal practical knowledge. We also learned that when teachers could not sustain their stories in the professional knowledge landscapes, their stories to live by shifted to stories to leave by, and they left teaching.