Project management teams are often fluid, changing in composition over projects. Fluidity enables innovative project success, as it allows organizing social capital dynamically across projects. In this study, we argue for an optimum between fluidity and stability. We operationalize project management fluidity as the degree of intactness of the whole team from one project to the next. In a sample of 5370 projects of video game development over ten years using information obtained by web crawling on the internet, we find an inverted-U-shaped relation between intactness and project success, assessed as sales, expert reviews, and consumer reviews. We show that optimal intactness shifts according to project context; higher success occurs at lower levels of intactness when projects require more innovation. Finally, we replicate our findings using intactness of relations between project managers and their operational teams. We discuss the implications for project management, and potential future research.

项目管理团队经常流动，在项目组成方面会有所变化。流动性使创新的项目成功，因为它允许跨项目动态组织社会资本。在这项研究中，我们主张在流动性和稳定性之间达到最佳。我们将项目管理的流动性作为整个团队从一个项目到下一个项目的完好程度进行操作。在十年中使用互联网爬网获得的信息对5370个视频游戏开发项目进行的抽样调查中，我们发现完好程度与项目成功之间存在倒U型关系，被评估为销售，专家评论和消费者评论。我们表明，最佳完整性会根据项目环境而变化；当项目需要更多创新时，更高的成功发生在较低的完整性上。最后，我们利用项目经理与其运营团队之间关系的完好性来复制我们的发现。我们讨论了对项目管理的影响以及潜在的未来研究。