a new broom sweeps clean, but an old broom knows the corners English

Meaning a new broom sweeps clean, but an old broom knows the corners meaning

What does a new broom sweeps clean, but an old broom knows the corners mean?

a new broom sweeps clean, but an old broom knows the corners proverb

— (Commonwealth) New management imposes radical changes, but those with prior experience have more knowledge.