Simple steps 'could save NHS £5bn' per BBC News

The BBC are pained to report www.bbc.co.uk/news/health-33071066 that:

'The NHS in England could save £5bn a year with improved staff organisation and a better approach to purchasing everyday items, a review will say.

Lord Carter came to the conclusion after spending a year working with 22 hospitals on behalf of the government.

He found a wide variation in spending on items, from aprons to latex gloves.

He also identified huge inefficiencies in the way staff were managed, with one hospital losing £10,000 a month through workers claiming too much leave.'

It's that last paragraph that struck me - 'one hospital losing £10,000 a month through workers claiming too much leave.'

How can that be possible? Doesn't that hospital have any sort of holiday recording system? Or as it's public money don't they care?