The inclusion of language learners and the imperative to meet the needs of English language learners in the mainstream classroom call upon teachers of English for speakers of other languages (ESOL teachers) and mainstream teachers to work together; however, little research has been done in US contexts to understand collaborative efforts between ESOL and mainstream teachers. Research thus far has focused on the inclusion of English language learners (ELLs), but this paper argues that we need to look more closely at the inclusion of teachers of ELLs, by examining how three ESOL teachers and three of their mainstream counterparts envision their work as collaborative. We found that when pairs envisioned their work as collaborative, they created a synergy that constructed a broader network of resources for ELLs by bringing together more people, materials, ideas and abilities than either teacher was able to generate alone. This network allowed both teachers in the pair to become part of a larger conversation, and connected both teachers to others who were working to foster the academic success of ELLs. (Contains 2 notes.)