For work teams to be effective, maintaining communication ties with other individuals and teams elsewhere in the organization—an activity typically referred to as team boundary spanning—is necessary for obtaining resources critical to project success. Within the literature on boundary spanning, the positive relationship between a team’s boundary-spanning activities and their performance has been validated repeatedly, but primarily through the use of self-reports from managers and team members. Thus, neither objective data exists to support these claims nor a longitudinal understanding of how various boundary-spanning activities may play different roles at various stages of project work. Similarly, with the proliferating use of enterprise so...