The document discusses the concept of 25/10 for improving the probability of successful construction projects. It argues that many projects experience cost and schedule overruns not in the last 10% of work, but in the initial 25% during the program and design phases due to incomplete drawings, subsurface issues, ineffective project management, lack of collaboration, and inadequate planning. Following the initial 25% of work, the construction phase should simply be a construction phase rather than a continuation of design through RFIs and submittals. Proper planning and preparation in the front-end phases is key to enhancing the likelihood of project success.