The Impact of Nonagility on Service Level and Project Duration*
正式定义了项目中的敏捷性概念，并通过分析表明，缺乏敏捷性（尤其在涉及外部资源时）会显著延迟项目工期，无论项目是串行还是并行结构。
ABSTRACT “Why projects are late” is a fundamental issue in theory and in practice. One well‐established explanation is that a project's network structure can be a significant factor—the “fatter” or more parallel the project, the later the project completion. Herein we show that a lack of agility, which may frequently arise in projects when there are external resources, can also be a significant factor in project delays—both in more serial‐like projects as well as more parallel ones. Specifically, this article formally characterizes the concept of agility in projects, shows how a lack of agility can have a significant impact on a project, and gives some general properties on agility with respect to a project's structure.