This article connects the pedagogy of the multimajor professional writing (MMPW) course with two important contemporary discussions in composition studies: the pedagogy called writing about writing (WAW) and the conversation about the transferability of rhetorical knowledge from school to work. The authors argued that the capaciousness of the WAW approach accommodates the best of genre-based and client-based pedagogies for the MMPW course and provides a framework for expanding the course beyond skill-based outcomes to include preparing students to be learning transformers. The article includes two iterations of what a writing about writing -- professional writing course can look like.