Should Miranda be concerned about the turnover of pizza makers? Why or why not?

Pizza Barn provides upscale takeout pizzas and has locations in major cities all across Canada. Miranda Jones, an HR analyst working at the corporate offices in Vancouver, was concerned as she reviewed statistics pertaining to the workforce during the past 6 months. She noted that over the past half-year, pizza makers (known as "dough masters" within the company) had a high turnover rate. Miranda compared Pizza Barn's numbers to those of other companies in the industry and found that employees were leaving at 3 times the industry average. Furthermore, pizza makers were staying with the company for an average of only 3 weeks.