Doughtime', a growing bakery chain, did not have its own in-house HR team. After some budget re-evaluations, Radhe, an HR professional was hired onto the team. Radhe had a good track record of starting up HR functions in two of his previous organizations, hence the team was excited to have an HR representative, full time, on staff. When Radhe came on board, he noticed that many of the HR functions were quite outdated, some as old as 10 years, without any recent reviews. To add, there was no clarity on how job analysis was done in the organization previously. A week after being hired, the operations manager asked Radhe to place an ad for a cashier at one of its bakeries. As the current job specifications were outdated, Radhe did not feel comfortable placing an ad immediately. His plan was to assist the department head to create a focus group and review the skills and knowledge required for job success. Who should be the participants in the focus group discussion