Just the fact that they didn't have a way to record and verify whether the deployment was done properly boggles my mind. When I worked at a bank we had package management to do deployments, a separate tool for taking inventory of installed software (in case of users managing to sneak third party programs on to their system), and on top of that a web framework for tracking milestones during projects that allowed for manual entry by technicians and automated input from scripts so tasks that had to be done by hand like replacing hardware could be coordinated with build scripts and management could monitor the whole thing from a dashboard.