Besides a production environment, the Theory of Constraints' concept can also be applied to a service business setting. A local courier company is experiencing growing issues with its delivery drivers not being able to fulfill their daily assigned parcel deliveries within their 8 hours shifts on every weekday. As a result, complaints have risen from customers about increased waiting times for scheduled delivery of their items. Required: (4 marks) (a) Identify two possible constraints that might prevent the delivery drivers from completing all their daily deliveries. (b) Explain how each of the possible constraints could be elevated. 1 AY B IE E S'S