We believe that our success depends to a significant extent upon the efforts and abilities of our senior management executives. In addition, we rely significantly on the leadership that David Oakey of David Oakey Designs provides to our internal design staff. Specifically, David Oakey Designs provides product design/production engineering services to us under an exclusive consulting contract that contains non-competition covenants. Our agreement with David Oakey Designs can be terminated by either party upon six months prior written notice to the other party. Our business also depends on the recruitment and retention of other key personnel, including experienced sales and manufacturing personnel.
The increasing demand for qualified personnel makes it more difficult for us to attract and retain employees with requisite skill sets, particularly employees with specialized technical and trade experience. In certain locations where we operate, the demand for labor has exceeded the supply of labor, resulting in higher costs. Despite our focused efforts to attract and retain employees, including by offering higher levels of compensation in certain instances, we experienced attrition rates within our hourly workforce in fiscal 2021 that exceeded historical levels and we incurred higher operating costs at certain of our facilities in the form of higher levels of overtime pay. The market for professional workers was, and remains, similarly challenging. Many of our professional workers continue to work from home as part of our COVID-19 protocols and, although in most instances we expect to offer flexible working arrangements in the future, we may experience higher levels of attrition within our professional workforce.
We may lose the services of key personnel for a variety of reasons, including if our compensation programs become uncompetitive in the relevant markets for our employees and service providers, or if the Company undergoes significant disruptive change (including not only economic downturns, but potentially other changes management believes are positive in the long term). The loss of key personnel with a great deal of knowledge, training and experience in the flooring industry - particularly in the areas of sales, marketing, operations, product design and management - could have an adverse impact on our business. We may not be able to easily replace such personnel, particularly if the underlying reasons for the loss make the Company relatively unattractive as an employer.
We continue to implement a multi-year transformation of our sales organization, including the standardized processes and systems that our sales force uses to go to market, interact with customers, work with architects and the design community and, in general, operate day-to-day. We also continue to improve and change the technology tools that the sales force is required to use as part of their day-to-day jobs, and monitor managerial positions that are designed to actively manage and coach the sales force. All of these changes are disruptive, which may create challenges for our sales force to adapt, particularly for long tenured employees, which comprise a large portion of our sales force. There are no guarantees that these efforts will increase sales or improve profitability of the business, or that they will not instead adversely disrupt the business, decrease sales, and decrease overall profitability.