in charge of — having control or responsibility for someone or something

a head chef wearing a tall white hat points confidently toward different cooking stations while holding a clipboard. She watches over multiple cooks who are preparing various dishes at their assigned stations. When one cook looks confused about a recipe, the head chef immediately steps over to guide and correct the preparation. The other kitchen staff look to her for direction as orders pile up. Her decisive gestures and the staff's attentive responses show her clear authority over the entire kitchen operation. someone having control and responsibility for managing others and their work