This document outlines a research proposal on improving team coordination across organizational boundaries in global software development. The research questions examine how organizational boundaries characterize and influence team coordination in GSD, and what coordination practices can support cross-boundary coordination. A literature review identified gaps in studying the effects of separate distances and inter-organizational contexts. The proposed studies would explore coordination challenges between firms and OSS communities, and between organizations on shared projects. Expected results include a framework for cross-boundary coordination and recommendations to address related issues.