Final answer:
The HR director should engage the union, with the hospital's labor counsel, in an exploratory discussion regarding the inclusion of food service workers in the employee engagement survey to ensure fairness and legal compliance.
Step-by-step explanation:
When the CEO of a hospital decides to move forward with an employee engagement survey, the first step the HR director should take with the food service workers' union is D. Engage the union, with the hospital's labor counsel, in an exploratory discussion to discuss the possible participation of bargaining unit employees in the survey. This approach will help ensure that the union is involved in the process and has a voice in how the assessment is conducted. Engaging the union early can promote transparency and collaboration, potentially mitigating concerns about unionization efforts and ensuring that all employee groups are represented fairly. It also aligns with best employer practices and helps safeguard against legal issues that might arise should the union feel excluded from the process.