Chance/ chances

Hi,

Those individuals directly involves need to be eld responsible, and in addition to them being punished, others need to be reminded to be extremely cautious and comply with standing procedures designed to minmize the chances of blunders occurring as they perform duties in the wards.

Why is it 'chances' but not 'chance'?

Another newspaper used 'the chance of blunders' when referring to the same incident.

Thanks in advance