A logical question, but internal teams often suffer from tunnel vision and corporate loyalty. As experts at https://www.fields-builds.com/blog/cutting-costs-avoiding-delays-constructability-reviews point out, an external consultant brings an independent perspective that isn’t constrained by your internal hierarchy. An in-house engineer might overlook an architect’s mistake to avoid straining relationships, or simply miss it out of habit of following a set template. An external audit brings a fresh pair of eyes, backed by experience from dozens of other projects, that can spot systemic conflicts even on paper. This isn’t about distrusting your own team, but about adding an extra layer of security. Ultimately, this saves millions on rework, which technical supervision usually only notices after the fact on-site.