Interdisciplinary teams sometimes view overlapping roles as problemati
c. In this article, a 1-min, 7-s segment of team conversation in which
''overlap'' is discussed is subjected to a microanalysis. The analysi
s includes an expansion of the meaning of the text (cf. Labov & Fanshe
l, 1977) and reveals participants' territoriality in the face of an id
eology of interdisciplinary collaboration. The larger ethnographic stu
dy of which this is a part, as well as interviews with participants in
the conversation, supports the interpretation of the text that is pre
sented.