Given Derek's extensive experience and diverse skill set, I've considered the average hourly rates for executives in similar industries. However, his unique combination of experience in food and retail, as well as his leadership roles, warrant a lower estimate. A more suitable rate for Derek would be around $75 per hour, considering his 56 years of experience and the fact that he is still actively working. This rate is lower than what I would expect for a more traditional executive, but it reflects his non-traditional career path and the value he brings to his industry.