24/7 coverage with no gaps
An ICU never closes: nights, weekends, public holidays, school breaks. Manually checking that every shift and on-call slot is covered, month after month, is thankless work — and a single oversight is paid for in the middle of the night.
Senior/junior supervision to guarantee
A resident must not end up alone on a shift that requires an attending. Supervision ratios, supervised shifts, junior-specific caps: these vital rules often live in the head of the department head, not in the spreadsheet.
Nights, weekends, long shifts: when distribution becomes uneven, fatigue sets in and tension follows quickly. Without a reliable counter, it is hard to prove to a colleague that they are not being short-changed.
Every sick leave restarts the whole thing
One sick leave, one maternity leave, one training day: you have to find out at short notice who can take the shift while respecting rest rules and skills, usually through messages sent to the whole team.