1)The Set-up process is owned by Production/Manufacturing Process Technicians and verified by Quality.
2)Quality has the responsibility for maintaining these set-up parts to ensure they are meeting the requirements, meaning periodic evaluation/inspection.
3)The Set-Up Manager(Shift/Plant Manager) over all shifts owns the Set-Up Parts.
4) Identify Production/Manufacturing Management Ownership, have these Managers be responsible for maintaining these Set-Up parts in their area and ensure the set-up crew is aware of this change.
5) If you are the boss over the set-up group or this is happening with the Management Owner, document your effort/training to bring awareness, understanding, competence and ensure the proper tools are available for the set-up group to complete their tasks. If all the tools, equipment, materials and ownership along with expectations are defined take appropriate disciplinary action to get back on track.
(Note: The people side is always the last resort, ensure you have all your objective evidence that rules out the process, equipment, material, training, awareness, competency before talking to individuals from a disciplinary approach.)
I hope this helps.......