STEP INTO ONE'S SHOES

{v. phr.} To do what someone else usually does after he has stopped doing it. * /When Bill's father died, Bill had to step into his father's shoes to support his mother./ * /A coach trains the junior varsity to step into the shoes of the members of the varsity team when they graduate./ * /When the boss retires, his son will step into his shoes./ Compare: IN ONE'S SHOES.