In accordance with embodiments of the present disclosure, a system may include a rack configured to receive a plurality of server information handling systems, each server information handling system comprising a respective baseboard management controller and a rack manager configured to communicatively couple to each of the respective baseboard management controllers. The rack manager may further be configured to communicate handshake management traffic to each of the respective baseboard management controllers via a management interface coupled between the rack manager and the respective baseboard management controller and communicate sustenance management traffic to a single baseboard management controller selected as a group manager of the respective baseboard management controllers, wherein the single baseboard management controller is configured to further communicate the sustenance management traffic to the respective baseboard management controllers other than the single baseboard management controller.