I'll speak first from a policy perspective, and then my colleague, Mollie, may wish to speak from a practice perspective.
From a policy perspective, it's important that procurements that are put in place are actively being managed from a performance perspective. We're very clear in our policy that it is our responsibility to be documenting, monitoring and investigating issues of contractor performance as they arise over the course of the contract, and to be leveraging the appropriate measures, either by law or under that particular contract, to address the documented issues.
Maybe there's a practice perspective, Mollie, that you may wish to add.