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

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        "head": "a new broom sweeps clean, but an old broom knows the corners"
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  "lang_code": "en",
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      "examples": [
        {
          "ref": "28 May 2017, “Does the song “Amadlozi” by the late Brenda Fassie ring a bell?”, in Mpulanga News",
          "text": "It is said that a new broom sweeps clean, but an old broom knows the corners – this does not apply to Mbombela’s social scene.",
          "type": "quotation"
        },
        {
          "ref": "22 December 2016, The Conversation UK",
          "text": "Chibnall, like Moffat, like Davies, like Capaldi, Tennant, and many others involved in the triumphant reboot, is a lifelong Doctor Who fan. His arrival should remind us of the full version of the old adage: a new broom sweeps clean but an old broom knows the corners. There are lives in the old Doctor yet.",
          "type": "quotation"
        },
        {
          "ref": "2011, Sylvia Bronner Walker, Little Nuggets for Life's Experiences",
          "text": "It has been noted that the new broom sweeps clean, but the old broom knows the corners. Every now and then, the older broom must trust the young broom's judgment.",
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        }
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        "New management imposes radical changes, but those with prior experience have more knowledge."
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        "(Commonwealth) New management imposes radical changes, but those with prior experience have more knowledge."
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          "word": "a new broom sweeps clean"
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        {
          "word": "a new broom sweeps clean, but the old broom knows the corners"
        },
        {
          "word": "a new broom sweeps clean, but an old broom knows all the corners"
        }
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  "word": "a new broom sweeps clean, but an old broom knows the corners"
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      "word": "a new broom sweeps clean"
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          "text": "It is said that a new broom sweeps clean, but an old broom knows the corners – this does not apply to Mbombela’s social scene.",
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        },
        {
          "ref": "22 December 2016, The Conversation UK",
          "text": "Chibnall, like Moffat, like Davies, like Capaldi, Tennant, and many others involved in the triumphant reboot, is a lifelong Doctor Who fan. His arrival should remind us of the full version of the old adage: a new broom sweeps clean but an old broom knows the corners. There are lives in the old Doctor yet.",
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        {
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        "(Commonwealth) New management imposes radical changes, but those with prior experience have more knowledge."
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  "synonyms": [
    {
      "word": "a new broom sweeps clean, but the old broom knows the corners"
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  "word": "a new broom sweeps clean, but an old broom knows the corners"
}