Example: HVAC Vendor-Salesman guarantees me that he can produce said RTU's in 10 weeks, while everyone else is at 16-24 weeks. We as the Contractor of Hire then provide said HVAC Vendor with an agreement to then be told in 8-10 weeks that its 6 weeks more or worse yet be told its one week more for six additional weeks all while knowing from the very beginning the allotted duration was always 16 weeks. What recourse or clause can you as the contractor of hire implement to hold the HVAC vendor accountable for their claim