[NittanyLion]

Their motivation comes from professionalism and the need/desire to hold on to $60,000 a year jobs.

By that logic, no business should peg bonus dollars or compensation increases to employee performance rating. They'd all work equally hard because they need the job and are professionals.

But we all know that everyone's human, and human behavior will change according to what system of incentives are in place.

[durasell]

Restaurants are not just any business. There's a specific culture in place.