Gaining sustainable competitive advantage (SCA) is a desire for almost every organization; however, acquiring such advantage is not an easy task. Many organizations implement information technology (IT) systems to be competitive in the market, and many researchers have examined the link between IT and SCA. Organizations need to focus not only on IT resources but also on how to manage these resources to be competitive in the marketplace. In this paper, a new model is proposed based on resource-based view and strategic alignment model. By linking strategic IT resources to alignment mechanisms, this model shows the ability of IT as a facilitator in gaining competitive advantage.