After an “all night” study session the day before their last final exam, four students decide to stop for some much-needed coffee at the campus Starbucks. They arrive at 8:30 a.m. and are dismayed to find a rather long line. Fortunately for the students, a Starbucks executive happens to be in line directly in front of them. From her, they learn the following facts about this Starbucks location: There are three employee types: There is a single cashier who takes all orders, prepares nonbeverage food items, grinds coffee, and pours drip coffee. There is a single frozen drink maker who prepares blended and iced drinks. There is a single espresso drink maker who prepares espressos, lattes, an