What we want is pretty basic. There are clear lines of communication between the contractor and the government. A performance-type of statement of work leads to less confusion. We monitor to make sure we get what we bargained for. It is part of the contract and part of the evaluation in the solicitation.
Contractors see it up front.
This is a team decision on our end. The project manager and the COTR have routine discussions about the quality being delivered. If a problem arises a contractor discrepancy report is prepared. The contract administrator takes it to the contractor for a response. If there is a failure to perform we can make deductions in payment.