Monday · 6 April 2020

Shift work and the cost of cover

Posted by Call In Sick Tips Revealed · Filed under Workplace · Permalink

In salaried office work, a single absence is usually a delay. In shift work it is a hole in a rota that somebody has to stand in, and the difference explains almost everything about how the two worlds treat sick leave.

A rota is a promise about coverage at particular hours. When somebody cannot attend, the promise is broken immediately and visibly, and the only repairs available are calling somebody in on a rest day, stretching the remaining staff across the same work, or reducing what is offered. All three have costs, and all three land on identifiable colleagues rather than on an abstract schedule.

Why the pressure is different

Because the cost is personal and immediate, shift workers report far more social pressure not to call in than office workers do. The person weighing up a marginal day is not weighing it against a deadline; they are weighing it against a named colleague's day off. That is a much harder calculation to make in favour of oneself, and it produces a great deal of attendance while unwell.

It also produces a distinctive failure mode. In settings that involve food, care, or close contact with the public, the individual incentive to attend runs directly against the collective interest in containment. This is the one area where a firm rule genuinely outperforms discretion, because a rule removes the burden of the decision from the person least able to make it dispassionately.

Designing slack in

The structural answer is unpopular because it costs money in advance: staff the rota slightly above the minimum, maintain a genuine relief pool, and treat cover as a planned expense rather than an emergency. Organisations that run at exactly the minimum have not eliminated the cost of absence, they have converted it into overtime, agency fees and turnover, which are usually larger and are certainly less predictable.

Two smaller measures help. Make the call-in route a single clear channel that reaches whoever actually rebuilds the rota, rather than a chain of messages between colleagues. And record cover shifts as cover, so that the person who repeatedly rescues the schedule is visible in the data rather than only in the memory of their team.

Absence in shift work is a staffing problem long before it is a conduct problem, and treating it as the latter reliably makes the former worse.