Jason Brownlie, a commercial plumbing and mechanical expert, argues that the primary financial drain in construction stems from the disconnect between design teams and contractors. When architects finalize plans before a contractor arrives, field conflicts become inevitable. Under a design-build model, contractors participate during the design phase, identifying constructability issues before they manifest as costly paperwork or project delays.

This integrated approach allows for overlapping phases, where procurement for long-lead equipment begins while design details are still being refined. Beyond the immediate reduction in change orders, this compression of the timeline offers significant indirect savings. By finishing construction earlier, owners reduce project financing carrying costs and move toward revenue generation sooner. Furthermore, having a single point of accountability removes the friction of disputes between designers and contractors, ensuring that value engineering suggestions—such as choosing high-performance materials at lower costs—are implemented by the same teams responsible for the final installation.