Parallel Parenting
According to Philip M. Stahl, research indicates that divorced parents generally engage in one of three styles of parenting: cooperative, conflicted, or disengaged. Of course, cooperative parenting is the best for all concerned. But if cooperative parenting is not an option, Dr. Stahl recommends that parents disengage and practice "parallel parenting." As the name suggests, parallel parenting means that each parent uses the parenting techniques he or she thinks appropriate, without criticizing or attempting to change the other parent's techniques.
The ABA Family Law Section newsletter contains an excerpt on the subject of parallel parenting from Dr. Stahl's Parenting After Divorce . Thanks to David C. Sarnacki for the heads up.