Purchasing is full of unintended consequences.<p>&quot;You only get paid if the project comes in under budget&quot; might just only give you the lower-tier players who have no better project to work on -- maybe the more professional people would say &#x27;no way&#x27; to an arrangement like that, especially given the % of these projects that wind up running over.<p>Then you wind up over budget with a sub-par contractor in charge of the project..  what do you do, change horses mid-bay?  No way, turns out the threat doesn&#x27;t even have teeth.