Researching Federal Contract law is not easy and is usually left to the professionals. Contract disputes are complicated as well because the law and the regulations that were in effect when the contract was created govern its applications. This means going through many books, current and superseded.
New Regulation Formalizes Ombudsman Practice and Identity for IDIQ Contracts
An ‘ombudsman’ is an official charged with addressing and/or investigating the interests of individuals’ or companies’