The purposes of this study were to ascertain the status of managerial decentralization in several types of Nigerian banks, to identify the training needs for managerial decentralization, and finally to develop a model for managerial decentralization for the banks studied if the findings warranted it. The study utilized the "Multiple Case Studies Approach" and four banks were studied. Included in the group of banks was one of the three largest banks in the country, one commercial bank with the full allowable foreign participation, one government owned bank, and one other indigenously owned bank. There were ten manager interviewees at each of the four banks. An interview guide was designed and used to seek information pertaining to six major research questions.