A low-odds, high-reward gamble may still be preferred to its complement, but we must also consider aversion to loss of the bonus to which employees are accustom

A low-odds, high-reward gamble may still be preferred to its complement, but we must also consider aversion to loss of the bonus to which employees are accustomed. The new program could--but probably still wouldn't--make sense if it were an incentive in addition to the bonus.