<p>Confirm what changed, tell the affected trades and get the fix assigned the same day. Do not wait for the next coordination meeting to find out.</p> <ul><li><strong>Compare, don&#39;t assume.</strong> Publish the new revision and compare it with the last one. BidLight shows what moved element by element, by category.</li><li><strong>Check the neighbours.</strong> Look at structural, MEP and interior changes next to the sub&#39;s elements. That is where clashes appear.</li><li><strong>Pin the issue now.</strong> Attach it to the elements involved so it carries the sheet and revision.</li><li><strong>Name an owner.</strong> They see it in their 6am digest the next morning.</li><li><strong>Close it with proof.</strong> A screenshot, a tagged user and the model commit that fixed it.</li></ul> <p>A clash caught in the model costs about $50. If the sub&#39;s change slips through and a crew runs into it, the same clash costs $5,000 to $50,000, and idle labour behind it runs $15K to $50K a week.</p>