During its operational test and evaluation, despite top management sup
port and significant technical achievements, a personnel assignment mo
del implemented for the United States Navy to support assignment decis
ions experienced overwhelming resistance from the users, the 200 or so
enlisted detailers, located at the Bureau of Naval Personnel in Washi
ngton, D.C. Our MS/OR research team had neglected to assess the negati
ve impact of the personnel assignment model on an important detailing
function: assignment negotiations or bargaining between the detailers
and their customers, the service members. By involving the detailers i
n revising the model and making the failings of the old model the stre
ngths of the new model, we turned certain failure into a successful pr
ogram. By managing the behavioral aspects of the implementation with s
pecial emphasis on problem identification and requirements structuring
, we overcame the difficulties of introducing change to a largely manu
al and highly decentralized decision process and we compare lessons le
arned with the experiences of other implementers.