Inherent power structures across departments and (mutual) ignorance are barriers to collaboration - and thus barriers to language curriculum renewal and teaching that meets learner needs. Through a narrative account of our own experience, we reflect in this talk on the highly productive inter-knowingness that has emerged and evolved between the English Language Centre and academic departments at Durham University. We relate how professional image management and the development of our own 'plausibility' among academic staff has led to a change in relationship, from 'working for' to 'working with'. Most importantly, we examine how this evolution has benefitted the student language learning experience.