Sari is implementing the method known as Soldiering.
Explanation:
According to Frederick Taylor, Soldiering happens when the employees do not utilize their capacity to the fullest and work at slowest rate if they were forced to work on repetitive tasks.
To overcome this, soldiering comes into counteract. Giving bonus on the top of their pay, workers will have the urge to work more. This technique is known as Soldiering. This method benefits in both business and the workers.