How did John Paul Vann react to the ARVN "victory" at Ap Bac? How did General Harkins accept John Paul Vann's assessment?

John Paul Vann was infuriated by the poor communications and sluggish combat response times of the ARVN commanders, which he felt were directly responsible for botching an otherwise sure victory. He called Ap Bac "a miserable damn performance" and was severely reprimanded for his views by General Harkins, who attempted to fire John Paul Vann over the incident.