Program teams can greatly facilitate the successful implementation of client ISD programs. We examined the effects of conflict resolution on ISD program performance. A total of 88 responses from IS program managers from 35 IS offshore outsourcing vendors were solicited, obtained, and analyzed. The results indicated that conflict resolution can enhance the level of communication, mutual support and effort among IS program members. The results further suggested that program performance was improved by increasing communication, promoting mutual supportiveness among program members and augmenting effort towards each other’s projects. Directions for management practice and future research are discussed.