Marcus needs help tracking inventory for his growing business. He wants to hire a new employee to manage it and creates a list of criteria to help him decide who to hire. He weighs his criteria as follows: High importance: hire the most experienced person Medium importance: hire quickly Low importance: hire the most cost effective person He interviews two people: Jack, who has 10 years of experience, can start in one week, and requests $25/hour. Jill, who has 3 years of experience, can start in one week, and requests $15/hour. According to his criteria, who should Marcus hire and why?