Poor management practices, e.g. cancelling or changing shifts last minute, have real business value in terms of labour flexibility (for the employer), so in an

Poor management practices, e.g. cancelling or changing shifts last minute, have real business value in terms of labour flexibility (for the employer), so in an employers' market, you can expect some businesses to take advantage of those practices to improve their bottom line. The underlying shift, as I see it, is a scarcity of labour, combined with a bullishness of employee attitudes, leading to those poor practices being penalised where previously they had to be tolerated.