They need to pay hourly paid managers for the amount of hours they usually work when paying out vacation and sick leave benefits. (Ex. Pay for 45 hours instead of capping out at 40 paid hours.)
Why is this important?
Hourly paid managers cannot take a sick day or a full weeks vacation without taking a hit of at least $100 on a paycheck. As an employee who is expected to work 45 hours a week, there shouldn't be a concern about missing pay because you are sick or taking a "paid" vacation. This leads to illness being brought to the stores because sick employees feel as though they cannot afford to take a sick day as well as vacations not being taken because they will not be fully paid.