A manager wants to determine the number of containers to use for incoming parts for a kanban system to be installed next month. The process will have a usage rate of $80$ pieces per hour. Because the process is new, the manager has assigned an inefficiency factor of $\mathrm{.}35.$ Each container holds $45$ pieces, and it takes an average of $75$ minutes to complete a cycle. How many containers should be used? As the system improves, will more or fewer containers be required? Why?