Even if the executive director rules against the employee on appeal, the employee can still grieve the termination to the superintendent followed by an appeal to the Board of Trustees.
If you grieve over something, especially someone's death, you feel very sad about it. He's grieving over his dead wife and son I didn't have any time to grieve Margery's grieving family battled to come to terms with their loss
If you are grieved by something, it makes you unhappy or upset. He was deeply grieved by the sufferings of the common people I was grieved to hear of the suicide of James It grieved me to see the poor man in such distress