The key challenge for the DMO and Defence industry is to reduce schedule slippage. For the 22 projects in this report, the average schedule variance factor of 1.30 (or an average slippage of 30%) indicates that the DMO and Defence industry must continue to focus attention on improving all aspects of project scheduling. This slippage is largely driven by an initial underestimation by industry and/or by the DMO of the technical maturity of the more highly developmental and large scale system integration projects. Australia is not alone in experiencing this, as reports similar to this MPR in the UK and USA demonstrate. The DMO continues to work in partnership with industry to address the underlying causes through various initiatives, some of which are highlighted in this report.