An accountant's approach to a suggestion scheme

A firm of accountants (that shall remain nameless) wanted to engage their staff in an efficiency drive so that everyone understood the need to be careful with the firm's money. 

The partners introduced a suggestion scheme facility and promised a prize of £100 for the best suggestion each month - in terms of a simple to implement money saving measure. 

The £100 prize was only awarded once. 

It went to an audit manager who suggested reducing the monthly prize to £50.