Can you get the parents to work on some stuff at home ? Consistency is the key! Even for pick up and drop off times always jeep them the same then the child knows ... After lunch I sleep then snack then mom/dad comes.... Kids use milestones throughout the day to know what comes next.....this is why its so important to have consistency ......same as having things done at home the same as at daycare then the child knows if I do "this" then "that" will happen 100% of the time weather at home or at daycare and that will encourage good behaviour and discourage bad behaviour.