Protection of federal oversight
The protection of federal oversight is worth keeping in some ways and it does add value above time and cost. Yes there are consequences that should be considered, are there foundational elements (literal and figurative) that are funded via separate phases that become less adequate for future work due to a lack of oversight? Does that make the future federally funded elements that are based on those foundations subject to a reduced life-cycle or accelerate their failure, are the material and design tie-ins compatible (i.e. substructure and superstructure, is there corrosion acceleration on different materials among phases based on different sources, different life-cycles on the same project, etc.). Time and schedule can be the big upside, but there are so many micro level considerations and those considerations/sacrifices need to be calculated. It is a worthwhile consideration, but oversight among phases just can't be ignored with the hope that the project will all work when tied together. Some oversight is necessary on all phases to ensure compatibility among them, but not the same level of oversight for non-federal phases. There needs to be an overarching eye on quality control from somewhere if the phases of the final project are associated with each other.