In the case of school integration, the prior ruling under Brown was not being followed. That failure to follow that ruling then lead to a second judgement giving judges specific powers to force the correct implementation of Brown if the school districts had not done it themselves.

It's very odd to jump directly to writing detailed policy on a first judgment. Usually it's only that a specific policy is not allowed or general issue must be corrected. Usually it takes a failure of valid corrective policy to be implement for the courts to force a specific policy which they have devised.