Consent Decree Violation

I have a question for the legal community, there was a consent decree which was filed in Federal Court in NY and the decree was violated. The whole issue was based on forms being used and there were some approved forms that were in the decree and others that werent. The plaintiffs have gotten a judgement on the defendants for violating the decree. Now the defendant wants to pay the judgement but wants to get the plaintiff to approve additional forms as well.
What can the defendant do if the plaintiff doesnt want to oblige and is being a pain? Should the defendant's lawyer get the federal court judge involved by writing him/her a letter?