This paper provides a commentary on previous research to inform our understanding of IT project retrospectives. The literature surrounding project retrospective outcomes, measurement and processes are discussed, and critical factors necessary for project retrospective success are considered. Consequently, semi-structured interviews are undertaken with experienced project managers to determine levels of agreement between research and practitioner disciplines. Outcome findings include multiple project retrospective definitions being used, differing project retrospective outcomes being desired, thirteen project retrospective processes being advocated, and no project retrospective measurements given to confirm whether these outcomes have been successfully achieved. Subsequently, project retrospective processes are presented such that each process has the capability to deliver on any outcome irrespective of its nature. Further research is suggested necessary to pursue a more rigorous and relevant conceptual understanding of the IT project retrospective construct.