Idiom: in charge (of someone/something)
— This is Maria. She’s in charge of ordering supplies so please let her know what you need.
— Can you please tell me who is in charge of hiring? I would like to apply for a job.
— Hello, I'd like to speak to the person who's in charge of your billing department please?
— The one thing that I don't like about this job is being in charge of the Christmas party so I've asked my supervisor if someone else could do it from now on.
— Do you know who's in charge of the annual conference this year?
— When I worked for Lego, I was in charge of managing their product testing.
— I see on your CV that you worked as a manager at Microsoft. Can you tell me about that position and how many employees you were in charge of?
— Are you in charge here? I want to complain about one of your sales people.
— No one wants to be in charge of social media here so they keep trying to make need do that work.
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