There is oversight. The men can have civilian counsel and they will be assigned a military counsel as well. Should these men be convicted in a general court martial then their case will be appealed automatically to the Navy Court of Criminal Appeal. If that court upholds the sentence then they can appeal further to the U.S. Court of Appeals for the Armed Forces. If that court upholds the lower court rulings then they still have a chance to take the case to the U.S. Supreme Court. Other than that what do you want done?
What Race is trying to say is that these men have been prejudged in the press and that they have been treated as guilty by the service in which they served. In pretrial confinement they have been subjected to restrictions and disabilities that implies a presumption of guilt.
He could have found out why they were sequestered longer and under more harsh conditions than most prisoners at GITMO,
he could have insisted on them being innocent before proven guilty,
he could have called the family and asked what he could do,
he could have done a lot of things but all he did was pass it off and claim he had a conflict of interest