Many times “To rock it” or “rocking it” is slang for giving your all to whatever you happen to be doing and generating enthusiasm in others at the same time
So maybe this situation means that he won't do his best at running that place
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May 22, 2018
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Answered
Also we have expression the breadwinner.
Many times used to describe the member of a family who earns the money that the family needs.
Ex. Men are often expected to be the the
breadwinner in a family.
So basically all of the expressions stated in the answers are correct and they all give the same meaning to the context of the sentence.